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U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

AIA CAD Layer Guidelines:

U.S. National CAD Standard Version 3

The American Institute of Architects 1735 New York Avenue, NW Washington, DC 20006-5292 (800) 242-3837 www.aia.org www.nationalcadstandard.org

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

The American Institute of Architects 1735 New York Avenue, NW Washington, DC 20006-5292 ©2005 The American Institute of Architects All rights reserved Published 2005 Printed in the United States of America Previous editions of AIA CAD Layer Guidelines: 1990: CAD Layer Guidelines (1st edition, AIA Press) 1997: CAD Layer Guidelines (2nd edition, AIA Press) 2002: AIA CAD Layer Guidelines: U.S. National CAD Standard Version 2 To order additional copies of the National CAD Standard, go to www.nationalcadstandard.org. No part of this publication may be reproduced, either in whole or in part, or stored in a retrieval system, or reproduced by mechanical or electronic photocopying, recording, or other means now known or hereafter invented, without the express written permission of the publisher.

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Table of Contents

INTRODUCTION

Overview.................................................................................. CLG-1 A Brief History of CAD Layer Guidelines ........................................ 1 New in Version 3.0 .......................................................................... 3

LAYER NAME FORMAT

Hierarchy of Data Fields ......................................................... CLG-4 Before You Begin............................................................................. 4 Discipline Designator, Level 1 ........................................................ 5 Discipline Designator, Level 2 ........................................................ 6 Major Group ..................................................................................... 7 Minor Group ..................................................................................... 7 Status (Phase) ................................................................................. 8

LAYER LIST

Drawing View Layer List ......................................................... CLG-9 Annotation Layer List.................................................................... 11 General Layer List ......................................................................... 13 Hazardous Materials Layer List .................................................... 15 Survey and Mapping Layer List..................................................... 17 Geotechnical Layer List ................................................................ 23

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U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Civil Works Layer List ................................................................... 25 Civil Layer List............................................................................... 27 Landscape Layer List .................................................................... 35 Structural Layer List ..................................................................... 39 Architectural Layer List ................................................................ 43 Interiors Layer List........................................................................ 47 Equipment Layer List .................................................................... 49 Fire Protection Layer List ............................................................. 53 Plumbing Layer List....................................................................... 55 Process Layer List......................................................................... 57 Mechanical Layer List ................................................................... 61 Electrical Layer List ...................................................................... 69 Telecommunications Layer List ................................................... 77 Resource Layer List ...................................................................... 79 Other Disciplines Layer List ......................................................... 81 Contractor / Shop Drawing Layer List .......................................... 83 Operations Layer List.................................................................... 85

COMMENTARY: U.S. NCS AND ISO 13567

Overview................................................................................ CLG-87 Field Codes .................................................................................... 88 Field Codes and Language ............................................................ 88 ISO 13567 Conformance ............................................................... 89 Field Names and Definitions ......................................................... 90 Discipline Designator vs. Agent Responsible............................... 90 Agent Responsible and Professional Liability.............................. 90 Discipline Designator and the Building Life Cycle ....................... 91 Discipline Designator and ISO 13567 Conformance .................... 91

TABLE OF CONTENTS CLG-ii

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Field Code Restrictions................................................................. 92 U.S. NCS and ISO Implementation Options .................................. 93 U.S. NCS and ISO Implementation Guidelines ............................. 94

TABLE OF CONTENTS

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Introduction

Overview

Virtually all vector-based CAD systems support the concept of layers. This function allows building design information to be organized in a systematic fashion, facilitates the visual display of the information on a computer screen, and allows the information to be efficiently converted to the conventional print media of drawings. Efficient use of layers can reduce document preparation time and improve document coordination. Organizing data by layers allows a single CAD file to contain a wealth of information about a building or facility. By turning selected layers on or off, data can be created, reviewed and edited according to a hierarchy that simulates the physical organization of building systems, the relative position of building elements, or the sequence of construction.

A Brief History of CAD Layer Guidelines

The American Institute of Architects published the first edition of CAD Layer Guidelines in 1990. The early success of the first edition and rapidly evolving technology resulted in the second edition being published in 1997. The most significant change between the first and second editions was the elimination of the "short" layer name format and the adoption of the long layer name format as a single standard. The second edition also included additional layer field codes for remodeling projects, added new discipline designations for interiors, telecommunications, and other disciplines, and improved the method of organizing drawing annotation. In July 1997, the AIA agreed to incorporate CAD Layer Guidelines into the emerging U.S. National CAD Standard (U.S. NCS), a project of the National Institute of Building Sciences (NIBS). The AIA and NIBS were joined in that effort with the Construction Specifications Institute (CSI) and the (then-known) Tri-Service CADD/GIS Technology Center of the U.S. Army Corps of Engineers. CSI and Tri-Service agreed to incorporate their own publications into the U.S. NCS, the Uniform Drawing System and the Plotting Guidelines, respectively. These four

INTRODUCTION CLG-1

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constituent publishers, as they came to be known, were joined by a number of building design and construction industry organizations in developing and publishing the U.S. NCS. In March 1999, the U.S. National CAD Standard Project Committee formally accepted CAD Layer Guidelines, Second Edition (with minor amendments) as a constituent document of the U.S. National CAD Standard, Version 1.0, published in July 1999. The U.S. NCS Project Committee immediately set to work on publication of Version 2.0, which was published in 2002. Considerable confusion resulted from the lack of "alignment" between the "Second Edition" of CAD Layer Guidelines and "Version 1.0" of the U.S. National CAD Standard. Because CAD Layer Guidelines, Second Edition was published before, and later incorporated into, the U.S. National CAD Standard, Version 1.0, this could not be avoided. With publication of the U.S. National CAD Standard, Version 2.0, this problem was corrected by giving the constituent document an entirely new name. For the first time, "AIA" became part of the title of the publication, and the numbered "editions" were abandoned. As a result, this publication is known as AIA CAD Layer Guidelines: U.S. NCS Version 2.0. No doubt some confusion will still arise between the U.S. NCS Version 2.0 and the old CAD Layer Guidelines, Second Edition, but the problem should be resolved with the publication of the new U.S. NCS, Version 3.0.

Version 2

AIA CAD Layer Guidelines, version 2, was designed and formatted to match its companion document, CSI's Uniform Drawing System. It was also carefully coordinated with that document, so that the two function as a whole. Additions and improvements to version 2 of AIA CAD Layer Guidelines:

· · · ·

Incorporation of NCS v1 amendments, including the change from a four-character to a single character Status field. An expanded Layer Format that includes a two-character discipline designator and a second optional Minor Group. An expanded Drawing View Layer List for users with a need to organize data by drawing type rather than by building system. Expanded Layer Lists for Civil, Structural, Mechanical, Plumbing, and Telecommunications Disciplines.

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INTRODUCTION

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

· · · · ·

New Discipline Designators for Survey/Mapping, Geotechnical, Civil Works, Process, and Operations Disciplines. An entirely new Layer List for the Survey/Mapping Discipline. New Annotation Minor Groups, and a new "free agent" rule permitting Annotation Minor Groups to modify any Major Group. Clarification of the existing "free agent" rule, emphasizing that any reasonable combination of Discipline Designator, Major Group and Minor Group is permitted. New rules and a detailed Commentary to facilitate conformance with the ISO CAD Standard.

New in Version 3

Highlights of revisions and additions to Version 3 include the following:

· · · · ·

User-defined Minor Group field codes may now be four alphabetic and/or numeric characters (0­9) and/or "~". Additions to the Process Layer List allow users to define layers by individual systems or groups of systems. Expanded the Landscape Layer List. New Major and Minor Groups added to the Equipment, Mechanical, and Interior Layer Lists. Equipment layer added to the Fire Protection Layer List.

INTRODUCTION

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Layer Name Format

Hierarchy of Data Fields

The layer name format is organized as a hierarchy. This arrangement allows users to select from a number of options for naming layers according to the level of detailed information desired. Layer names consist of distinct data fields separated from one another by dashes. A detailed list of abbreviations, or field codes, is prescribed to define the content of layers. Most field codes are mnemonic English abbreviations of construction terminology that are easy to remember. There are four defined layer name data fields: Discipline Designator, Major Group, two Minor Groups, and Status. The Discipline Designator and Major Group fields are mandatory. The Minor Group and Status fields are optional. Each data field is separated from adjacent fields by a dash ("-") for clarity.

The complete U.S. NCS layer name format, showing the Discipline Designator, the Major Group, two Minor Groups, and the Status fields.

A I

- W A L L -

F U L L - D I M S - N

Before You Begin

The U.S. NCS allows you to select from a number of format options for creating layer names. It is recommended that you select the options that you wish to use for layer names on a given project, and then apply the resulting format consistently for all layer names on that project. Note that for conceptual conformance to ISO 13567, Organization and Naming of Layers for CAD, the layer name format and length must be the same for all layers on a given project. See "Commentary: U.S. NCS and ISO 13567" (p. 91) at the end of AIA CAD Layer Guidelines for detailed information about ISO conformance.

LAYER NAME FORMAT CLG-4

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Discipline Designator, Level 1

A typical layer name showing the required data fields only. Note that only the mandatory discipline character is shown, creating a Level 1 Discipline Designator.

A - W A L L

The Discipline Designator denotes the category of subject matter contained on the specified layer. The Discipline Designator is a two-character field. The first character is the discipline character, and the second character is an optional modifier. The Discipline Designator is described in greater detail on page UDS-01.14. For a complete list of Discipline Designators, see Appendix A of UDS Module 1 beginning on page UDS-01.35.

LEVEL 1 DISCIPLINE DESIGNATORS

G H V B W C L S A I Q F P D M E T R X Z O General Hazardous Materials Survey / Mapping Geotechnical Civil Works Civil Landscape Structural Architectural Interiors Equipment Fire Protection Plumbing Process Mechanical Electrical Telecommunications Resource Other Disciplines Contractor / Shop Drawings Operations

LAYER NAME FORMAT

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Discipline Designator, Level 2

The optional second character is used to further define the discipline character. As an example, the Level 2 Discipline Designators for Architectural are shown:

A typical layer name showing the required data fields only. Note that the mandatory Level 1 discipline character is supplemented by the optional discipline modifier to create a Level 2 Discipline Designator.

Designator

Description

New

A AS AD AE AI AF AG AJ AK

Architectural Architectural Site Architectural Demolition Architectural Elements Architectural Interiors Architectural Finishes Architectural Graphics User-Defined User-Defined

A D - WA L L

For a complete list of Discipline Designators, see Appendix A of UDS Module 1 beginning on page UDS-01.35.

LAYER NAME FORMAT

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Major Group

A typical layer name showing the required data fields only. The mandatory Major Group field is highlighted:

A - WA L L

The Major Group is a four-character field that identifies a major building system. The prescribed Major Group field codes (four-character abbreviations) shown on the Layer List are logically grouped with specific discipline designators. However, any Major Group may be combined with any prescribed Discipline Designator, provided that the definition of the Major Group remains unchanged. Therefore, any reasonable combination of the prescribed Discipline Designators and Major Groups is permitted. NOTE: User-defined Major Group field codes are not permitted.

A typical layer name showing one optional Minor Group field:

A - WA L L - F U L L

A typical layer name showing two optional Minor Group fields:

NOTE: For conceptual conformance to ISO 13567, Organization and Naming of Layers for CAD, the use of the Major Group "ANNO" is not permitted. See "Commentary: U.S. NCS and ISO 13567" (p. 91) at the end of AIA CAD Layer Guidelines for detailed information about ISO conformance.

Minor Group

This is an optional, four-character field to further define the Major Groups. For example, AWALL-FULL denotes Architectural, Wall, Full-height. A second minor group may be used for still further delineation of the data contained on a layer. For example, A-WALL-FULL-TEXT indicates Architectural, Wall, Full-height, Text. The prescribed Minor Group field codes (four-character abbreviations) shown on the Layer List are logically grouped with specific Major Groups. However, any Minor Group may be used to modify any Major Group, provided that the definition of the Minor Group remains unchanged. Therefore, any reasonable combination of the prescribed Major and Minor Groups is permitted. NOTE: User-defined Minor Group field codes are permitted. They must contain four alphabetic and/or numeric characters and/or "~", and must be fully documented on the U.S. NCS Compliance Disclosure Statement for the project on which they are used. NOTE: For conceptual conformance to ISO 13567, Organization and Naming of Layers for CAD, the use of certain Minor Group field codes is restricted. See "Commentary: U.S. NCS and ISO 13567" (p. 91) at the end of AIA CAD Layer Guidelines for detailed information about ISO conformance.

LAYER NAME FORMAT CLG-7

A - WA L L - F U L L - T E X T

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

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Status (Phase)

A typical layer name showing the location of the optional Status field:

A - WA L L - F U L L - T E X T - N

The status field is an optional single-character field that distinguishes the data contained on the layer according to the status of the work or the construction phase. The prescribed field codes for this field are as follows:

STATUS FIELD CODES

N E D F T M X 1-9 New work Existing to remain Existing to demolish Future work Temporary work Items to be moved Not in contract Phase numbers

Note that for conceptual conformance to ISO 13567, Organization and Naming of Layers for CAD, this field may be used to denote either "Status" OR "Phase," but not BOTH. See "Commentary: U.S. NCS and ISO 13567" (p. 91) at the end of AIA CAD Layer Guidelines for detailed information about ISO conformance.

LAYER NAME FORMAT

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Drawing View Layer List

Drawing View Field Codes

The Drawing View field codes are specialized codes for layers that are organized primarily by drawing type, rather than by major building system. The field codes DETL, ELEV, and SECT may also be used as Minor Group field codes to modify a major building system. For data sets that are organized by drawing type, an optional alphanumeric Minor Group field code, ANNN, is prescribed to further distinguish drawings within a single CAD file. This Minor Group may be used ONLY to modify the prescribed Drawing View Major Groups; it may not be used to modify any other Major Group. The format of ANNN is also prescribed. It must consist of a single alphabetic character followed by a three-digit number between 001 and 999. The definition of ANNN is not prescribed; it must be defined by the user. The definition must be documented on the U.S. NCS Compliance Disclosure Statement for the project on which it is used. The Minor Group field codes MCUT, MBND, PATT, and IDEN may be used to modify any Major or Minor Group in the Layer List. The definitions of these prescribed field codes cannot be changed. See page CLG-8 for rules and options governing the use of field codes.

Drawing View Layer Names

Layer Name Description New

-DETL -ELEV -SECT -ANNN

-

-

Detail Elevation Section Drawing View Major Group: optional number (A = letter, NNN = number between 001 and 999) -ANNN-MCUT Drawing View Major Group: optional number: material cut by the view -ANNN-MBND Drawing View Major Group: optional number: material beyond cut -ANNN-PATT Drawing View Major Group: optional number: textures and hatch patterns -ANNN-IDEN Drawing View Major Group: optional number: component identification numbers -ANNN-OTLN Drawing View Major Group: optional number: outline of object drawn

DRAWING VIEW LAYER LIST

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Annotation Layer List

Annotation Field Codes

Annotation consists of text, dimensions, notes, sheet borders, detail references and other elements on CAD drawings that do not represent physical aspects of a building. Use of the Major Group ANNO allows all annotation to be placed in a defined group of layers. The Layer Names shown below provide examples for the use of Minor Group field codes for annotation. These Minor Groups may be used to modify any Major or Minor Group in the Layer List. See page CLG8 for complete rules and options governing the use of Major and Minor Group field codes.

Annotation Layer Names

Layer Name Description New Layer Name Description New

-ANNO -BRNG -DIMS -IDEN -KEYN -LABL -LEGN -MARK -MATC -NOTE -NPLT

Annotation Bearings and distance labels (survey coordinates) Dimensions Identification tags Keynotes Labels Legends, symbol keys Markers, break marks, leaders Match lines Notes Non-plotting graphic information

-

-RDME -REDL -REFR -REVC -REVS -SCHD -SYMB -TEXT -TABL -TITL -TTLB

Read-me layer (not plotted) Redlines Reference, external files Revision clouds Revisions Schedules Reference symbols Text Data tables Drawing or detail titles Border and title block

ANNOTATION LAYER LIST

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General Layer List

General Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

General Discipline Designators

Designator Description New

G GI GC GR GJ GK

General General Informational General Contractual General Resource User-Defined User-Defined

General Layer List

Layer Name Description New

G -ACCS G -CODE G -EVAC G -FIRE G -PLAN G -SITE

Access plan Code compliance plan Evacuation plan Fire protection plan Key plan (floor plan) Key plan (site plan)

GENERAL LAYER LIST

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Hazardous Materials Layer List

Hazardous Materials Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Hazardous Materials Discipline Designators

Designator Description New

H HA HC HL HP HR HJ HK

Hazardous Materials Asbestos Chemicals Lead PCB Refrigerants User-Defined User-Defined

Hazardous Materials Layer List

Layer Name Description New

H -PLAN H -SITE

Key plan (floor plan) Key plan (site plan)

HAZARDOUS MATERIALS LAYER LIST

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Survey/Mapping Layer List

Survey/Mapping Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Survey/Mapping Discipline Designators

Designator Description New

V VA VF VI VJ VK

Survey / Mapping Aerial Survey Field Survey Digital Survey User-Defined User-Defined

Survey/Mapping Layer Names

Layer Name Description New Layer Name Description New

V -BLDG V -BLDG-DECK

Buildings and primary structures Buildings and primary structures: outdoor decks (attached, no roof overhead) Buildings and primary structures: outline Buildings and primary structures: overhead (overhang)

V -BLDG-PRCH V -BNDY V -BNDY-BORO V -BNDY-CITY V -BNDY-CNTY V -BNDY-CORP V -BNDY-NATL

Buildings and primary structures: porch (attached, roof overhead) Political boundaries Political boundaries: borough Political boundaries: city Political boundaries: county Political boundaries: corporation Political boundaries: national

V -BLDG-OTLN V -BLDG-OVHD

SURVEY AND MAPPING LAYER LIST

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VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Survey/Mapping (continued) V -BNDY-POLI V -BNDY-PROV V -BNDY-STAT V -BNDY-TSHP V -BNDY-ZONE V -BRDG V -BRDG-BENT V -BRDG-CNTR V -BRDG-CTLJ V -BRDG-DECK V -BRDG-RAIL V -BRKL V -BRKL-BOTB V -BRKL-FLOW V -BRKL-TOPB V -BRLN V -BZNA V -CHAN V -CHAN-BWTR V -CHAN-CNTR V -CHAN-DACL V -CHAN-DOCK V -CHAN-NAID Political boundaries: all Political boundaries: province Political boundaries: state Political boundaries: town or township Political boundaries: zoning Bridge Bridge: top of bent Bridge: centerline Bridge: control joint Bridge: top of deck Bridge: railing Break / fault lines Break / fault lines: bottom of bank Break / fault lines: flowline (lowest point of ditch) Break / fault lines: top of bank Building restriction line Buffer zone area Navigable channels Navigable channels: breakwater Navigable channels: channel centerline and survey report lines Navigable channels: de-authorized channel limits, anchorages, etc. Navigable channels: decks, docks, floats, piers Navigable channels: navigation aids

Survey/Mapping (continued) V -COMM V -COMM-MHOL V -COMM-OVHD V -COMM-POLE V -COMM-UNDR V -CTRL V -CTRL-BMRK V -CTRL-FLYS V -CTRL-GRID V -CTRL-HCPT V -CTRL-HVPT V -CTRL-PNPT V -CTRL-TRAV V -CTRL-VCPT V -DRIV V -DRIV-ASPH V -DRIV-CNTR V -DRIV-CONC V -DRIV-CURB V -DRIV-FLNE V -DRIV-GRVL V -DRIV-MRKG V -DRIV-UPVD V -DTCH V -DTCH-BOTD V -DTCH-CNTR V -DTCH-EWAT Communications Communications: manhole Communications: overhead lines Communications: box / pole Communications: underground lines Control points Control points: benchmarks Control points: fly station Control points: grid lines Control points: horizontal Control points: horizontal / vertical Control points: panel points Control points: traverse Control points: vertical Driveways Driveways: asphalt surface Driveways: centerline Driveways: concrete surface Driveways: curb Driveways: fire lane Driveways: gravel surface Driveways: pavement markings Driveways: unpaved surface Ditches or washes Ditches or washes: bottom Ditches or washes: centerline Ditches or washes: edge of water

SURVEY AND MAPPING LAYER LIST

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Layer Name

Description

New

Layer Name

Description

New

Survey/Mapping (continued) V -DTCH-TOPD V -ESMT V -ESMT-ACCS V -ESMT-CATV V -ESMT-CONS V -ESMT-CSTG V -ESMT-ELEC V -ESMT-FDPL V -ESMT-INEG V -ESMT-LSCP V -ESMT-NGAS V -ESMT-PHON V -ESMT-ROAD Ditches or washes: top Easements Easements: access (pedestrian only; private access) Easements: cable television Easements: conservation Easements: construction / grading Easements: electrical Easements: flood plain Easements: ingress / egress (vehicles; private access) Easements: landscape Easements: natural gas line Easements: telephone line Easements: roadway

Survey/Mapping (continued) V -FUEL V -FUEL-MHOL V -FUEL-PIPE V -FUEL-TANK V -FUEL-UNDR V -NGAS V -NGAS-MHOL V -NGAS-PIPE V -NGAS-UNDR V -NGAS-TANK V -NODE V -NODE-DASP V -NODE-EASP V -NODE-PASP V -NODE-ABUT V -NODE-ACTL V -NODE-BLIN V -NODE-BLDG V -NODE-BRDG V -NODE-BRKL Fuel gas Fuel gas: manhole Fuel gas: above-ground piping Fuel gas: storage tanks Fuel gas: underground piping Natural gas Natural gas: manhole Natural gas: above-ground piping Natural gas: underground piping Natural gas: storage tanks Node Node: description attributes for survey points Node: elevation attributes for survey points Node: point number attributes for survey points Node: abutment Node: aerial horizontal and vertical control points Node: baseline Node: building points Node: bridge survey points Node: break lines, spot elev. points and lines for creation of break lines as top of bank Node: brush row points Node: brush points

V -ESMT-ROAD-PERM Easements: roadway: permanent V -ESMT-ROAD-TEMP Easements: roadway: temporary V -ESMT-RWAY Easements: right-of-way (public access) V -ESMT-SGHT Easements: sight distance V -ESMT-SSWR V -ESMT-STRM V -ESMT-SWMT V -ESMT-TRAL V -ESMT-UTIL V -ESMT-WATR V -FLHA Easements: sanitary sewer Easements: storm sewer Easements: storm water management Easements: trail / path (public access) Easements: utilities Easements: water supply Flood hazard area

V -NODE-BROW V -NODE-BRSH

SURVEY AND MAPPING LAYER LIST

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VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Survey/Mapping (continued) V -NODE-CABL V -NODE-CNTL V -NODE-CURB V -NODE-DECK V -NODE-DRIV V -NODE-EXPJ V -NODE-GRND V -NODE-MRKG V -NODE-MHOL V -NODE-NGAS V -NODE-PIPE V -NODE-POLE V -NODE-PVMT V -NODE-SIGN V -NODE-SSWR V -NODE-STRM V -NODE-SWLK V -NODE-TREE V -NODE-TROW V -NODE-WATR Node: underground cable points Node: baseline, property line and centerline points Node: curb points Node: bridge deck points Node: driveway points Node: expansion joint Node: ground points indicating elevations Node: pavement marking points (yellow / white stripes) Node: manhole points Node: gas line & appurtenances points Node: pipe points (driveway / roadway culverts) Node: pole points (power, telephone, etc.) Node: pavement points Node: sign Node: sanitary sewer and appurtenances points Node: storm sewer and appurtenances points Node: sidewalk points Node: tree points Node: tree row points Node: water line and appurtenances points

Survey/Mapping (continued) V -POWR V -POWR-FENC V -POWR-INST V -POWR-MHOL V -POWR-OVHD V -POWR-POLE V -POWR-STRC V -POWR-UNDR V -PRKG V -PRKG-ASPH V -PRKG-CNTR V -PRKG-CONC V -PRKG-CURB V -PKNG-DRAN V -PRKG-FLNE V -PRKG-GRVL V -PRKG-MRKG V -PRKG-STRP V -PRKG-UPVD V -PROP V -PROP-LINE V -PROP-QTRS V -PROP-RSRV V -PROP-SBCK Power Power: fence enclosure Power: instrumentation (meters, transformers) Power: manholes Power: overhead lines Power: box / pole Power: structures Power: underground lines Parking lots Parking lots: asphalt surface Parking lots: centerline Parking lots: concrete surface Parking lots: curb Telephone systems: drainage slope indications Parking lots: fire lane Parking lots: gravel surface Parking lots: pavement markings Parking lots: striping Parking lots: unpaved surface Property boundary Property boundary: property lines, survey benchmarks, property corners Property boundary: quarter section Property boundary: reserve Property boundary: setback lines

SURVEY AND MAPPING LAYER LIST

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VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Survey/Mapping (continued) V -PROP-SECT V -PROP-SUBD V -PROP-SXTS V -PVMT V -PVMT-ASPH V -PVMT-CONC V -PVMT-GRVL V -RAIL V -RAIL-CNTR V -RAIL-EQPM V -RAIL-TRAK V -RIVR V -RIVR-BOTM V -RIVR-CNTR V -RIVR-EDGE V -RIVR-TOPB V -ROAD V -ROAD-ASPH V -ROAD-CNTR V -ROAD-CONC V -ROAD-CURB V -ROAD-FLNE Property boundary: section boundary Property boundary: subdivision (interior) lines Property boundary: sixteenth section Property boundary: pavement Property boundary: asphalt surface Property boundary: concrete surface Property boundary: gravel surface Railroad Railroad: centerline Railroad: equipment (gates, signals, etc.) Railroad: track River River: bottom River: centerline River: edge River: top of bank Roads, streets and highways Roads, streets and highways: asphalt surface Roads, streets and highways: centerline Roads, streets and highways: concrete surface Roads, streets and highways: curb Roads, streets and highways: fire lane

Survey/Mapping (continued) V -ROAD-GRVL V -ROAD-MRKG V -ROAD-UPVD V -RRAP V -RWAY V -RWAY-CTLA V -RWAY-CNTR V -RWAY-LINE V -RWAY-LMTA V -RWAY-MRKR V -RWAY-STAN V -SITE V -SITE-EWAT V -SITE-FENC V -SITE-ROCK V -SITE-RTWL V -SITE-SIGN V -SITE-VEGE V -SSWR V -SSWR-MHOL V -SSWR-PIPE Roads, streets and highways: gravel surface Roads, streets and highways: pavement markings Roads, streets and highways: unpaved surface Riprap Right-of-way Right-of-way: controlled access Right-of-way: centerline Right-of-way: lines Right-of-way: limited access Right-of-way: marker Right-of-way: stationing Site features Site features: edge of water Site features: fences Site features: rocks and rock outcroppings Site features: retaining wall Site features: signs Site features: trees, shrubs, and other vegetation Sanitary sewer system Sanitary sewer system: manhole Sanitary sewer system: above-ground piping

SURVEY AND MAPPING LAYER LIST

CLG-21

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Survey/Mapping (continued) V -SSWR-STRC V -SSWR-UNDR V -STEM V -STEM-INST V -STEM-MHOL V -STEM-PIPE V -STEM-STRC V -STEM-UNDR V -STRM V -STRM-DTCH V -STRM-MHOL V -STRM-PIPE V -STRM-POND V -STRM-STRC V -STRM-UNDR V -SURV V -SURV-DATA V -SURV-LINE V -SWLK V -SWLK-ASPH V -SWLK-CONC Sanitary sewer system: structures Sanitary sewer system: underground piping Steam system Steam system: instrumentation (meters, valves, pumps) Steam system: manhole Steam system: above-ground pipe Steam system: structures Steam system: underground piping Storm drainage and sewer system Storm drainage and sewer system: ditches and swales Storm drainage and sewer system: manhole Storm drainage and sewer system: above-ground piping Storm drainage and sewer system: retention pond Storm drainage and sewer system: structures Storm drainage and sewer system: underground Survey Survey: data Survey: control Line Sidewalks Sidewalks: asphalt Sidewalks: concrete

Survey/Mapping (continued) V -TOPO V -TOPO-BORE V -TOPO-EWAT V -TOPO-GRID V -TOPO-MAJR V -TOPO-MINR V -TOPO-SPOT V -TOPO-SOUN V -UNID V -UNID-CABL V -UNID-PIPE V -UNID-TANK V -UNID-UTIL V -UNID-UTIL-OVHD V -UNID-UTIL-UNDR V -WATR V -WATR-INST V -WATR-MHOL V -WATR-PIPE V -WATR-STRC V -WATR-UNDR Topography Topography: test borings Topography: edge of water Topography: coordinate grids Topography: major topographical contours Topography: minor topographical contours Topography: spot elevations Topography: soundings Unidentified site objects Unidentified site objects: cable Unidentified site objects: aboveground piping Unidentified site objects: storage tanks Unidentified site objects: utility lines Unidentified site objects: utility lines: overhead Unidentified site objects: utility lines: underground Water supply Water supply: instrumentation (meters, valves, pumps) Water supply: manhole Water supply: above-ground piping Water supply: structures Water supply: underground piping

SURVEY AND MAPPING LAYER LIST

CLG-22

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Geotechnical Layer List

Geotechnical Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Geotechnical Discipline Designators

Designator Description New

B BJ BK

Geotechnical User-Defined User-Defined

Geotechnical Layer List

Layer Name Description New Layer Name Description New

B -BORE B -BORE-FDTA B -BORE-HOLE B -BORE-LDTA B -DETL-ANNN

Borings Borings: field data Borings: perc holes Borings: laboratory data Detail: optional detail number (A = letter, NNN = number between 001 and 999) Detail: optional detail number: borings and perc holes Detail: optional detail number: concrete Detail: optional detail number: earth

B -DETL-ANNN-FILL B -DETL-ANNN-FDTA B -DETL-ANNN-GENF

Detail: optional detail number: fill and cover material Detail: optional detail number: field data Detail: optional detail number: general features

B -DETL-ANNN-BORE B -DETL-ANNN-CONC B -DETL-ANNN-ERTH

B -DETL-ANNN-GNDW Detail: optional detail number: ground water B -DETL-ANNN-LDTA B -DETL-ANNN-PVMT Detail: optional detail number: laboratory data Detail: optional detail number: pavement

GEOTECHNICAL LAYER LIST

CLG-23

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Geotechnical (continued) B -DETL-ANNN-SPCL B -DETL-ANNN-STRM B -DETL-ANNN-SUBS B -DETL-ANNN-SURF Detail: optional detail number: special features Detail: optional detail number: storm water Detail: optional detail number: subsurface areas Detail: optional detail number: surface areas

GEOTECHNICAL LAYER LIST

CLG-24

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Civil Works Layer List

Civil Works Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes. The Civil Works discipline is defined as large-scale projects that usually cross property boundaries, such as highways, tunnels, dams, utility distribution systems, water supply systems, and sewer systems. The selection of the Civil or Civil Works Discipline Designator is at the discretion of the user, but should generally be used to distinguish projects in terms of scale.

Civil Works Discipline Designators

Designator Description New

W WJ WK

Civil Works User-Defined User-Defined

Civil Works Layer List

Layer Name Description New

No layer names have been prescribed for this discipline. However, in addition to the rules on page CLG-8 allowing any combination of Discipline Designator, Major Group and Minor Group, the layer names prescribed in the Civil and Survey / Mapping Layer Lists are particularly applicable to the Civil Works Discipline.

CIVIL WORKS LAYER LIST

CLG-25

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Civil Layer List

Civil Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes. The Civil Discipline is defined as a project or a portion of a project that is usually contained within a single property boundary. The selection of the Civil or Civil Works Discipline Designator is at the discretion of the user, but should generally be used to distinguish projects in terms of scale.

Civil Discipline Designators

Designator Description New

C CD CS CG CP CI CT CU CJ CK

Civil Civil Demolition Civil Site Civil Grading Civil Paving Civil Improvements Civil Transportation Civil Utilities User-Defined User-Defined

Civil Layer List

Layer Name Description New Layer Name Description New

C -AFLD C -AFLD-ASPH C -AFLD-CNTR C -AFLD-CONC

CIVIL LAYER LIST

Airfields Airfields: asphalt surface Airfields: centerline Airfields: concrete surface

C -AFLD-FLNE C -AFLD-FLNE-MRKG C -AFLD-FLNE-SIGN

Airfields: fire lane Airfields: fire lane: pavement markings Airfields: fire lane: signage

CLG-27

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Civil (continued) C -AFLD-GRVL C -AFLD-MRKG C -AFLD-SIGN C -AFLD-STAN C -AFLD-WHIT C -AFLD-WHIT-TICK C -AFLD-YELO C -AFLD-YELO-TICK C -BLDG C -BLDG-DECK Airfields: gravel surface Airfields: pavement markings Airfields: signs Airfields: stationing Airfields: white paint Airfields: white paint: tick marks Airfields: yellow paint Airfields: yellow paint: tick marks Buildings and primary structures Buildings and primary structures: outdoor decks (attached, no roof overhead) Buildings and primary structures: outline Buildings and primary structures: overhead (overhang) Buildings and primary structures: porch (attached, roof overhead) Baseline Baseline: stationing Test borings Bridge Bridge: deck fault / break line Bridge: construction joint Bridge: centerline Bridge: deck Bridge: expansion joint

Civil (continued) C -BRDG-HIDD C -BRDG-OBJT C -BRDG-OBJT-PRIM C -BRDG-OBJT-SECD C -BRDG-RBAR C -CATV C -CATV-OVHD C -CATV-POLE C -CATV-UNDR C -CEME C -CHAN C -CHAN-DACL C -CHAN-CNTR C -CHAN-NAID C -CHAN-DOCK C -CHAN-BWTR C -COMM C -COMM-OVHD C -COMM-POLE C -COMM-UNDR C -CTRL C -CTRL-BMRK C -CTRL-FLYS C -CTRL-GRID Bridge: objects or lines hidden from view Bridge: objects Bridge: objects: primary Bridge: objects: secondary Bridge: reinforcing bar Cable TV Cable TV: overhead lines Cable TV: box / pole Cable TV: underground lines Cemetery Navigable channels Navigable channels: de-authorized channel limits, anchorages, etc. Navigable channels: channel centerline and survey report lines Navigable channels: navigation aids Navigable channels: decks, docks, floats, piers Navigable channels: breakwater Communications Communications: overhead lines Communications: box / pole Communications: underground lines Control points Control points: benchmarks Control points: fly station Control points: grid lines

C -BLDG-OTLN C -BLDG-OVHD C -BLDG-PRCH C -BLIN C -BLIN-STAN C -BORE C -BRDG C -BRDG-FALT C -BRDG-CNTJ C -BRDG-CNTR C -BRDG-DECK C -BRDG-EXPJ

CIVIL LAYER LIST

CLG-28

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Civil (continued) C -CTRL-HCPT C -CTRL-HVPT C -CTRL-PNPT C -CTRL-TRAV C -CTRL-VCPT C -DFLD C -DFLD-OTLN C -DFLD-PROF C -DRIV C -DRIV-ASPH C -DRIV-CNTR C -DRIV-CONC C -DRIV-CURB C -DRIV-CURB-FACE C -DRIV-CURB-BACK C -DRIV-FLNE C -DRIV-FLNE-MRKG C -DRIV-FLNE-SIGN C -DRIV-GRVL C -DRIV-MRKG C -DRIV-SIGN C -DRIV-UPVD C -DRIV-WHIT C -DRIV-WHIT-TICK C -DRIV-YELO C -DRIV-YELO-TICK Control points: horizontal Control points: horizontal / vertical Control points: panel points Control points: traverse Control points: vertical Drain fields Drain fields: outline Drain fields: profile Driveways Driveways: asphalt surface Driveways: centerline Driveways: concrete surface Driveways: curb Driveways: curb: face Driveways: curb: back Driveways: fire lane Driveways: fire lane: pavement markings Driveways: fire lane: signs Driveways: gravel surface Driveways: pavement markings Driveways: signs Driveways: unpaved surface Driveways: white paint Driveways: white paint: tick marks Driveways: yellow paint Driveways: yellow paint: tick marks

Civil (continued) C -DTCH C -DTCH-BOTD C -DTCH-CNTR C -DTCH-EWAT C -DTCH-TOPD C -EROS C -EROS-CIPR C -EROS-CNTE C -EROS-DDIV C -EROS-DVDK C -EROS-INPR C -EROS-SILT C -EROS-SSLT C -ESMT C -ESMT-ACCS C -ESMT-CATV C -ESMT-CONS C -ESMT-CSTG C -ESMT-ELEC C -ESMT-FDPL Ditches or washes Ditches or washes: bottom Ditches or washes: centerline Ditches or washes: edge of water Ditches or washes: top Erosion and sediment control Erosion and sediment control: culvert inlet protection Erosion and sediment control: construction entrance Erosion and sediment control: drainage divides Erosion and sediment control: diversion dike Erosion and sediment control: inlet protection Erosion and sediment control: silt fence Erosion and sediment control: super silt fence Easements Easements: access (pedestrian only; private access) Easements: utility - cable television Easements: conservation Easements: construction / grading Easements: utility - electrical Easements: flood plain

CIVIL LAYER LIST

CLG-29

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Civil (continued) C -ESMT-INEG C -ESMT-LSCP C -ESMT-NGAS C -ESMT-PHON C -ESMT-ROAD Easements: ingress / egress (vehicles; private access) Easements: landscape Easements: natural gas line Easements: telephone line Easements: roadway

Civil (continued) C -FIRE-UNDR C -FLHA C -FLHA-025Y C -FLHA-050Y C -FLHA-100Y C -FLHA-200Y C -FUEL C -FUEL-EQPM C -FUEL-INST C -FUEL-MHOL C -FUEL-PIPE C -FUEL-TANK C -FUEL-UNDR C -LOCN C -NGAS C -NGAS-EQPM C -NGAS-INST C -NGAS-MHOL C -NGAS-PIPE C -NGAS-TANK C -NGAS-UNDR C -PERC C -PERC-HOLE C -PRKG Fire protection system: underground piping Flood hazard area Flood hazard area: 25 year mark Flood hazard area: 50 year mark Flood hazard area: 100 year mark Flood hazard area: 200 year mark Fuel gas Fuel gas: equipment (pumps, motors) Fuel gas: instrumentation (meters, valves, etc.) Fuel gas: manhole Fuel gas: piping Fuel gas: storage tanks Fuel gas: underground piping Limits of construction Natural gas Natural gas: equipment (pumps, motors) Natural gas: instrumentation (meters, valves, etc.) Natural gas: manhole Natural gas: piping Natural gas: storage tanks Natural gas: underground piping Perc testing Perc testing: test holes Parking lots

C -ESMT-ROAD-PERM Easements: roadway: permanent C -ESMT-ROAD-TEMP Easements: roadway: temporary C -ESMT-RWAY Easements: right-of-way (public access) C -ESMT-SGHT Easements: sight distance C -ESMT-SSWR C -ESMT-STRM C -ESMT-SWMT C -ESMT-TRAL C -ESMT-UTIL C -ESMT-WATR C -FENC C -FENC-GRAL C -FENC-POST C -FENC-STEL C -FENC-WOOD C -FIRE C -FIRE-HYDR C -FIRE-PIPE Easements: sanitary sewer Easements: storm sewer Easements: storm water management Easements: trail or path (public access) Easements: utilities Easements: water supply Fences Fences: guard rail Fences: posts Fences: steel (barbed wire and/or chain link) Fences: wood Fire protection system Fire protection system: hydrants and connections Fire protection system: piping

CIVIL LAYER LIST

CLG-30

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Civil (continued) C -PRKG-ASPH C -PRKG-CARS C -PRKG-CONC C -PRKG-CURB C -PRKG-CURB-FACE C -PRKG-DRAN C -PRKG-FIXT Parking lots: asphalt surface Parking lots: cars and other vehicles Parking lots: concrete surface Parking lots: curb Parking lots: curb: face Parking lots: drainage slope indications Parking lots: fixtures (wheel stops, parking meters, etc.)

Civil (continued) C -POND-SWAY C -POWR-FENC C -POWR-INST C -POWR-MHOL C -POWR-OVHD C -POWR-POLE C -POWR-STRC C -POWR-UNDR C -PROP C -PROP-LINE C -PROP-SBCK C -PVMT C -PVMT-ASPH C -PVMT-CONC C -PVMT-GRVL C -RAIL C -RAIL-CNTR C -RAIL-EQPM C -RAIL-TRAK C -RIVR C -RIVR-BOTM C -RIVR-CNTR C -RIVR-EDGE C -RIVR-TOPB Ponds: spillway Power: enclosure fence Power: instrumentation (meters, transformers) Power: manhole Power: overhead lines Power: box / pole Power: structures Power: underground lines Property Property: property lines, survey benchmarks, property corners Property: setback lines Pavement Pavement: asphalt surface Pavement: concrete surface Pavement: gravel surface Railroad Railroad: centerline Railroad: equipment (gates, signals, etc.) Railroad: track River River: bottom River: centerline River: edge River: top of bank

C -PRKG-CURB-BACK Parking lots: curb: back

C -PRKG-FLNE Parking lots: fire lane C -PRKG-FLNE-MRKG Parking lots: fire lane: pavement markings C -PRKG-FLNE-SIGN Parking lots: fire lane: signage C -PRKG-GRVL C -PRKG-MRKG C -PRKG-SIGN C -PRKG-STRP C -PRKG-UPVD C -PRKG-WHIT C -PRKG-WHIT-TICK C -PRKG-YELO C -PRKG-YELO-TICK C -POND C -POND-EDGE C -POND-TOPB C -POWR Parking lots: gravel surface Parking lots: pavement markings Parking lots: signs Parking lots: striping Parking lots: unpaved surface Parking lots: white paint Parking lots: white paint: tick marks Parking lots: yellow paint Parking lots: yellow paint: tick marks Ponds Ponds: edge Ponds: top of bank Power

CIVIL LAYER LIST

CLG-31

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Civil (continued) C -ROAD C -ROAD-ASPH C -ROAD-CNTR C -ROAD-CONC C -ROAD-CURB Roadways Roadways: asphalt surface Roadways: centerline Roadways: concrete surface Roadways: curb

Civil (continued) C -SSWR C -SSWR-LATL C -SSWR-MHOL C -SSWR-PIPE C -SSWR-PIPE-RCON C -SSWR-PIPE-STEL C -SSWR-PROF C -SSWR-STAN C -SSWR-STRC C -SSWR-UNDR C -STEM C -STEM-INST C -STEM-MHOL C -STEM-PIPE C -STEM-STRC C -STEM-UNDR C -STRM C -STRM-CNTR C -STRM-DIAG C -STRM-HWAL C -STRM-MHOL C -STRM-PIPE C -STRM-PIPE-RCON Sanitary sewer Sanitary sewer: lateral line Sanitary sewer: manhole Sanitary sewer: piping Sanitary sewer: piping: reinforced concrete Sanitary sewer: piping: steel Sanitary sewer: profile Sanitary sewer: stationing Sanitary sewer: structures Sanitary sewer: underground piping Steam system Steam system: instrumentation (meters, valves, etc.) Steam system: manhole Steam system: piping Steam system: structures Steam system: underground piping Storm sewer Storm sewer: centerline Storm sewer: plan diagram Storm sewer: headwall Storm sewer: manhole Storm sewer: piping Storm sewer: piping: reinforced concrete

C -ROAD-CURB-FACE Roadways: curb: face C -ROAD-CURB-BACK Roadways: curb: back C -ROAD-FLNE Roadways: fire lane C -ROAD-FLNE-MRKG Roadways: fire lane: pavement markings C -ROAD-FLNE-SIGN C -ROAD-GRVL C -ROAD-MRKG C -ROAD-PROF C -ROAD-SIGN C -ROAD-STAN C -ROAD-UPVD C -ROAD-WHIT C -ROAD-WHIT-TICK C -ROAD-YELO C -ROAD-YELO-TICK C -RRAP C -SGHT C -SGHT-PROF C -SOIL C -SSWR-DIAG C -SSWR-FORC Roadways: fire lane: signs Roadways: gravel surface Roadways: pavement markings Roadways: profile Roadways: signs Roadways: stationing Roadways: unpaved surface Roadways: white paint Roadways: white paint: tick marks Roadways: yellow paint Roadways: yellow paint: tick marks Riprap Sight distance Sight distance: profile Soils Sanitary sewer: plan diagram Sanitary sewer: force main

CIVIL LAYER LIST

CLG-32

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Civil (continued) C -STRM-PIPE-CMTL C -STRM-PROF C -STRM-STAN C -STRM-STRC C -STRM-UNDR C -SWLK C -SWLK-ASPH C -SWLK-CONC C -TINN C -TINN-BNDY C -TINN-FALT C -TINN-VIEW C -TINN-VOID C -TOPO C -TOPO-BORE C -TOPO-DEPR C -TOPO-MAJR C -TOPO-MINR C -TOPO-SPOT C -TOPO-TPIT C -TRAL C -TRAL-ASPH C -TRAL-GRVL C -TRAL-MRKG Storm sewer: piping: corrugated metal Storm sewer: profile Storm sewer: stationing Storm sewer: structures Storm sewer: underground piping Sidewalks Sidewalks: asphalt Sidewalks: concrete Triangulated irregular network Triangulated irregular network: boundary Triangulated irregular network: fault / break lines Triangulated irregular network: triangulation Triangulated irregular network: void regions Topography Topography: test borings Topography: depression contours Topography: major contours Topography: minor contours Topography: spot elevations Topography: test pits Trails or paths Trails or paths: asphalt surface Trails or paths: gravel surface Trails or paths: pavement markings

Civil (continued) C -TRAL-CONC C -TRAL-SIGN C -TRAL-UPVD C -WALL C -WALL-SHEA C -WALL-CTLJ C -WALL-NSBR C -WALL-RTWL C -WATR C -WATR-DIAG C -WATR-INST C -WATR-PIPE C -WATR-PROF C -WATR-STAN C -WATR-STRC C -WATR-UNDR C -WATR-WELL C -WETL Trails or paths: concrete surface Trails or paths: signs Trails or paths: unpaved surface Walls Walls: structural bearing or shear walls Walls: control joints Walls: noise barrier Walls: retaining Water supply systems Water supply systems: plan diagram Water supply systems: instrumentation (meters, valves, etc.) Water supply systems: piping Water supply systems: profile Water supply systems: stationing Water supply systems: structures Water supply systems: underground piping Water supply systems: well Wetlands

CIVIL LAYER LIST

CLG-33

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Landscape Layer List

Landscape Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Landscape Discipline Designators

Designator Description New

L LD LI LP LJ LK

Landscape Landscape Demolition Landscape Irrigation Landscape Planting User-Defined User-Defined

Landscape Layer List

Layer Name Description New Layer Name Description New

L -ANNO L -ANNO-ALIN L -ANNO-ALIN-LABL L -ANNO-ALIN-INFO L -ANNO-CURV-LABL L -ANNO-CURV-TABL

LANDSCAPE LAYER LIST

Annotation Annotation: alignment stationing Annotation: alignment stationing: labels Annotation: alignment stationing: information Annotation: curve: labels Annotation: curve: tables

L -ANNO-CURV-TABLBRDR Annotation: curve: tables: border L -ANNO-CURV-TABLHEDR Annotation: curve: tables: header L -ANNO-CURV-TABLTEXT Annotation: curve: tables: text L -ANNO-LINE-LABL Annotation: line: labels

L -ANNO-LINE-TABL

Annotation: line: tables

CLG-35

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Landscape (continued) L -ANNO-LINE-TABLBRDR L -ANNO-LINE-TABLHEDR L -ANNO-LINE-TABLTEXT L -IRRG L -IRRG-COVR L -IRRG-DRIP L -IRRG-EQPM L -IRRG-LTRL L -IRRG-MAIN L -IRRG-PIPE L -IRRG-SLVE L -IRRG-SPKL L -IRRG-VALV L -PLNT L -PLNT-BEDS L -PLNT-BUSH L -PLNT-CONI L -PLNT-CTNR L -PLNT-EDGR Annotation: line: tables: border

Landscape (continued) L -PLNT-EVGR L -PLNT-GRND Annotation: line: tables: header L -PLNT-PALM Annotation: line: tables: text Irrigation Irrigation: coverage Irrigation: drip irrigation tubing Irrigation: equipment (pumps, valves, and controllers) Irrigation: lateral pipe Irrigation: mainline Irrigation: piping Irrigation: pipe sleeve Irrigation: sprinklers (rotors, heads) Irrigation: valves* Plant and landscape material Plant and landscape material: perennial and annual beds Plant and landscape material: bushes and shrubs Plant and landscape material: coniferous trees Plant and landscape material: container or planter Plant and landscape material: planting bed edger L -PLNT-REMN L -PLNT-REMV L -PLNT-SEED L -PLNT-SHAD L -PLNT-SHRB L -PLNT-TREE L -PLNT-TURF L -PLNT-PLTS L -PLNT-VINE L -SITE L -SITE-BRDG L -SITE-CURB L -SITE-CURB-BACK Plant and landscape material: evergreen trees - broadleaf Plant and landscape material: ground covers Plant and landscape material: palm trees Plant and landscape material: material to remain Plant and landscape material: material to be removed Plant and landscape material: seeding areas Plant and landscape material: shadow area Plant and landscape material: shrub symbols Plant and landscape material: trees Plant and landscape material: lawn areas Plant and landscape material: planting plants Plant and landscape material: vines Site improvements Site improvements: bridges (pedestrian) Site improvements: curbs Site improvements: curbs: back of curb

LANDSCAPE LAYER LIST

CLG-36

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Landscape (continued) L -SITE-CURB-FACE L -SITE-DECK L -SITE-FENC L -SITE-FENC-LINK L -SITE-FENC-LINK04FT L -SITE-FENC-LINK06FT L -SITE-FENC-PRVC L -SITE-FENC-WOOD L -SITE-FURN L -SITE-PKNG L -SITE-PKNG-STRP L -SITE-PLAY L -SITE-PLAY-EQPM L -SITE-PLAY-ZONE L -SITE-POOL L -SITE-POOL-BACK L -SITE-POOL-FACE L -SITE-PVMT Site improvements: curbs: face of curb Site improvements: raised decks (wood, typ.) Site improvements: fencing Site improvements: fencing: chain link Site improvements: fencing: chain link: four feet high Site improvements: fencing: chain link: six feet high Site improvements: fencing: privacy fence Site improvements: fencing: wood Site improvements: furnishings Site improvements: parking Site improvements: parking: paint striping Site improvements: play structures Site improvements: play structures: equipment Site improvements: play structures: fall zones Site improvements: pools and spas Site improvements: pools and spas: back of pool wall Site improvements: pools and spas: face of pool wall Site improvements: pavement edge

Landscape (continued) L -SITE-PVMT-ASPH L -SITE-PVMT-BRCK L -SITE-PVMT-CONC L -SITE-PVMT-CONCAGGR L -SITE-PVMT-GRAV L -SITE-PVMT-JNTC L -SITE-PVMT-JNTE L -SITE-PVMT-PAVR L -SITE-PVMT-RAMP L -SITE-PVMT-STEP L -SITE-ROAD L -SITE-RPRP L -SITE-SPRT L -SITE-SPRT-EQPM L -SITE-SPRT-PRIM L -SITE-STEP L -SITE-RTWL L -SITE-TRAL Site improvements: pavement edge: asphalt Site improvements: pavement edge: brick Site improvements: pavement edge: concrete Site improvements: pavement edge: concrete: exposed aggregate Site improvements: pavement edge: gravel Site improvements: pavement edge: control joint Site improvements: pavement edge: expansion joint (for concrete only) Site improvements: pavement edge: unit pavers Site improvements: pavement edge: accessible ramp Site improvements: pavement edge: stair tread Site improvements: edge of road line Site improvements: riprap Site improvements: sports fields Site improvements: sports fields: equipment Site improvements: sports fields: perimeter Site improvements: steps Site improvements: retaining walls Site improvements: trail edge

LANDSCAPE LAYER LIST

CLG-37

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Landscape (continued) L -SITE-TRAL-ASPH L -SITE-TRAL-CONC L -SITE-TRAL-GRVL L -SITE WALK L -SITE WALL L -SITE WEIR L -TOPO L -TOPO-DEPR L -TOPO-INDX L -TOPO-INTR L -TOPO-LIMI L -TOPO-SPOT Site improvements: trail edge: asphalt Site improvements: trail edge: concrete Site improvements: trail edge: gravel Site improvements: walks and steps Site improvements: walls Site improvements: pool weir Proposed grading Proposed grading: depression Proposed grading: index contour Proposed grading: intermediate contours Proposed grading: limit of earthwork Proposed grading: spot elevations

LANDSCAPE LAYER LIST

CLG-38

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Structural Layer List

Structural Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Structural Discipline Designators

Designator Description New

S SD SS SB SF SJ SK

Structural Structural Demolition Structural Site Structural Substructure Structural Framing User-Defined User-Defined

Structural Layer List

Layer Name Description New Layer Name Description New

S -BEAM S -BEAM-ALUM S -BEAM-CONC S -BEAM-STEL S -BEAM-WOOD S -BRAC S -BRAC-ALUM S -BRAC-ALUM-HORZ

Beams Beams: aluminum Beams: concrete Beams: steel Beams: wood Bracing Bracing: aluminum Bracing: aluminum: horizontal

S -BRAC-ALUM-VERT S -BRAC-STEL S -BRAC-STEL-HORZ S -BRAC-STEL-VERT S -BRAC-WOOD S -BRAC-WOOD-VERT S -COLS

Bracing: aluminum: vertical Bracing: steel Bracing: steel: horizontal Bracing: steel: vertical Bracing: wood Bracing: wood: vertical Columns

CLG-39

S -BRAC-WOOD-HORZ Bracing: wood: horizontal

STRUCTURAL LAYER LIST

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Structural (continued) S -COLS-ALUM S -COLS-CONC S -COLS-STEL S -COLS-WOOD S -DECK S -DECK-FLOR S -DECK-FLOR-OPNG S -DECK-ROOF S -DECK-ROOF-OPNG S -FNDN S -FNDN-FTNG S -FNDN-GRBM S -FNDN-PCAP S -FNDN-PIER S -FNDN-PILE S -FNDN-RBAR S -GRID S -GRID-EXTR S -GRID-INTR S -JNTS S -JNTS-CNTJ S -JNTS-CTLJ S -JNTS-EXPJ S -JOIS S -JOIS-BRGX S -PROP S -SLAB Columns: aluminum Columns: concrete Columns: steel Columns: wood Structural deck Structural deck: floor Structural deck: floor: openings Structural deck: roof Structural deck: roof: openings Foundation Foundation: footings Foundation: grade beams Foundation: pile caps Foundation: drilled piers Foundation: piles Foundation: reinforcing Column grid Column grid: exterior columns Column grid: interior columns Joints Joints: construction Joints: control Joints: expansion Joists Joists: bridging Property lines Slab

Structural (continued) S -SLAB-CONC S -SLAB-OPNG S -SLAB-OPNX S -SLAB-EDGE S -SLAB-STEL S -SLAB-WOOD S -STRS S -STRS-LADD S -TRUS S -WALL S -WALL-CMUW S -WALL-CONC S -WALL-MSNW S -WALL-PCST S -WALL-SHEA S -WALL-STEL S -WALL-WOOD S S S S S S S -ABLT -METL -GRAT -RBAR -RBAR-BOT1 -RBAR-BOT2 Slab: cast-in-place concrete Slab: openings and depressions Slab: opening indication ("x") Slab: edge of slab Slab: steel slab Slab: wood Stairs Stairs: ladders & ladder assemblies Trusses Walls Walls: concrete masonry unit Walls: cast-in-place concrete Walls: masonry Walls: pre-cast concrete Walls: structural shear walls Walls: steel stud Walls: wood Any major group: anchor bolts Any major group: misc. metals Any major group: grates Any major group: reinforcing bar Any major group: reinforcing bar: bottom group 1 Any major group: reinforcing bar: bottom group 2

-GRAT-OVHD Any major group: grates: overhead

STRUCTURAL LAYER LIST

CLG-40

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Structural (continued) S S -RBAR-TOP1 -RBAR-TOP2 Any major group: reinforcing bar: top group 1 Any major group: reinforcing bar: top group 2

STRUCTURAL LAYER LIST

CLG-41

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Architectural Layer List

Architectural Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Architectural Discipline Designators

Designator Description New

A AS AD AE AI AF AG AJ AK

Architectural Architectural Site Architectural Demolition Architectural Elements Architectural Interiors Architectural Finishes Architectural Graphics User-Defined User-Defined

Architectural Layer List

Layer Name Description New Layer Name Description New

A A A A A -

-FNSH -CASE -FIXT -GRID -SIGN

Any major group: finishes Any major group: casework Any major group: plumbing fixtures Any major group: grid Any major group: signs

A -AREA A -AREA-OCCP A -CLNG A -CLNG-ACCS A -CLNG-OPEN

Area Area: occupant or employee names Ceiling Ceiling: access Ceiling: openings

CLG-43

ARCHITECTURAL LAYER LIST

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Architectural (continued) A -CLNG-TEES A -CLNG-SUSP A -COLS A -CONV A -DOOR A -DOOR-FULL A -DOOR-PRHT A -EQPM A -EQPM-ACCS A -EQPM-FIXD A -EQPM-MOVE A -EQPM-NICN A -EQPM-OVHD A -FLOR A -FLOR-CASE A -FLOR-EVTR A -FLOR-HRAL A -FLOR-LEVL A -FLOR-OTLN A -FLOR-OVHD A -FLOR-RAIS A -FLOR-RISR A -FLOR-SIGN A -FLOR-SPCL A -FLOR-STRS A -FLOR-TPTN Ceiling: main tees Ceiling: suspended elements Columns Conveying systems Doors Doors: full-height (swing and leaf) Doors: partial height (swing and leaf) Equipment Equipment: access Equipment: fixed equipment Equipment: moveable equipment Equipment: not in contract Equipment: overhead Floor Floor: casework Floor: elevator cars and equipment Floor: handrails, guard rails Floor: level changes, ramps, pits, depressions Floor: outline Floor: overhead (objects above) Floor: raised Floor: stair risers Floor: signs Floor: specialties (toilet room accessories, display cases) Floor: stair treads, escalators, ladders Floor: toilet partitions

Architectural (continued) A -FLOR-WDWK A -FURN A -FURN-FILE A -FURN-FIXD A -FURN-FREE A -FURN-PLNT A -FURN-PNLS A -FURN-SEAT A -FURN-STOR A -FURN-WKSF A -GLAZ A -GLAZ-FULL A -GLAZ-PRHT A -GLAZ-SILL A -HVAC A -HVAC-SDFF A -HVAC-RDFF A -LITE A -ROOF A -ROOF-HRAL A -ROOF-LEVL A -ROOF-OTLN A -ROOF-RISR A -ROOF-STRS A -WALL A -WALL-CAVI Floor: architectural woodwork Furnishings Furnishings: file cabinets Furnishings: fixed in place Furnishings: freestanding Furnishings: plants Furnishings: system panels Furnishings: seating Furnishings: system storage components Furnishings: system work surface components Glazing Glazing: full-height Glazing: partial-height Glazing: window sills HVAC HVAC: supply diffusers HVAC: return air diffusers Lighting fixtures Roof Roof: handrails Roof: level changes Roof: outline Roof: stair risers Roof: stair treads, ladders Walls Walls: cavity

CLG-44

ARCHITECTURAL LAYER LIST

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Architectural (continued) A -WALL-CNTR A -WALL-FIRE A -WALL-FULL A -WALL-HEAD A -WALL-JAMB A -WALL-MOVE A -WALL-PRHT A -WALL-PATT Walls: centerline Walls: fire wall Walls: full-height Walls: door and window headers Walls: door and window jambs Walls: moveable partitions Walls: partial-height Walls: texture or hatch patterns

ARCHITECTURAL LAYER LIST

CLG-45

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Interiors Layer List

Interiors Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Interiors Discipline Designators

Designator Description New

I ID IN IF IG IJ IK

Interior Interior Demolition Interior Design Interior Furnishings Interior Graphics User-Defined User-Defined

Interiors Layer List

Layer Name Description New Layer Name Description New

I I -

-FIXT -GRID

Any major group: plumbing fixtures Any major group: grid Any major group: signs Area Area: occupant or employee names Casework Ceiling

I -CLNG-ACCS I -CLNG-OPEN I -CLNG-SUSP I -CLNG-TEES I -COLS I -DOOR I -DOOR-FULL

Ceiling: access Ceiling: openings Ceiling: suspended elements Ceiling: main tees Columns Doors Doors: full-height

CLG-47

I -SIGN I -AREA I -AREA-OCCP I -CASE I -CLNG

INTERIORS LAYER LIST

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Interiors (continued) I -DOOR-PRHT I -EQPM I -EQPM-ACCS I -EQPM-FIXD I -EQPM-MOVE I -EQPM-NICN I -EQPM-OVHD I -EQPM-STOR I -FLOR I -FLOR-EVTR I -FLOR-FIXT I -FLOR-HRAL I -FLOR-LEVL I -FLOR-OTLN I -FLOR-OVHD I -FLOR-RAIS I -FLOR-RISR I -FLOR-SIGN I -FLOR-STRS I -FLOR-SPCL I -FLOR-TPTN I -FLOR-WDWK I -FNSH I -FURN I -FURN-FILE I -FURN-FREE

INTERIORS LAYER LIST

Interiors (continued) Doors: partial height Equipment Equipment: access Equipment: fixed equipment Equipment: moveable equipment Equipment: not in contract Equipment: overhead Equipment: storage Floor Floor: elevator cars and equipment Floor: plumbing fixtures Floor: handrails, guard rails Floor: level changes, ramps, pits, depressions Floor: outline Floor: overhead (objects above) Floor: raised Floor: stair risers Floor: signs Floor: stair treads, escalators, ladders Floor: architectural specialties (toilet room accessories, display cases) Floor: toilet partitions Floor: architectural woodwork Finishes Furnishings Furnishings: file cabinets Furnishings: freestanding

CLG-48

I -FURN-PLNT I -FURN-PNLS I -FURN-SEAT I -FURN-STOR I -FURN-WKSF I -GLAZ I -GLAZ-FULL I -GLAZ-PRHT I -GLAZ-SILL I -HVAC I -HVAC-SDFF I -HVAC-RDFF I -MILL I -PRTN I -PRTN-FULL I - PRTN-PRHT I - PRTN-MOVE I - PRTN-HEAD I - PRTN-JAMB I - PRTN-FIRE

Furnishings: plants Furnishings: system panels Furnishings: seating Furnishings: system storage components Furnishings: system work surface components Glazing Glazing: full-height Glazing: partial-height Glazing: window sills HVAC HVAC: supply diffusers HVAC: return air diffusers Millwork Partitions Partitions: full-height Partitions: partial-height Partitions: moveable partitions Partitions: door and window headers Partitions: door and window jambs Partitions: fire wall

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Equipment Layer List

Equipment Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Equipment Discipline Designators

Designator Description New

Q QA QB QC QD QE QF QH QL QM QP QR QS QT QV QY QJ QK

Equipment Athletic Equipment Bank Equipment Dry Cleaning Equipment Detention Equipment Educational Equipment Food service Equipment Hospital Equipment Laboratory Equipment Maintenance Equipment Parking Lot Equipment Retail Equipment Site Equipment Theatrical Equipment Video / Photographic Equipment Security Equipment User-Defined User-Defined

EQUIPMENT LAYER LIST

CLG-49

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Equipment Layer List

Layer Name

Description

New

Layer Name Q -CMPQ

Description

New

Q Q Q -CASE

-OTLN -PIPE

Any major group: outline Any major group: piping Casework Casework: thin dividers Casework: cabinet and worksurface edging Casework: casework elevation Casework: plumbing/service fixtures Casework: casework structural framing Casework: full height cabinets/lockers Casework: casework glazing Casework: cabinet grounds, wall backing Casework: hardware Casework: cabinet section/model number Casework: lower cabinets Casework: casework hatching Casework: wall mounted shelving Casework: cabinet sub-assemblies, drawer boxes Casework: undercounter cabinets-for layout Casework: upper cabinets Casework: worksurface

Computer equipment Elevation: equipment outlines Elevation: plumbing/service fixtures Elevation: glass, glazing hardware Elevation: locks, pulls, supports, other hardware Elevation: elevation object Elevation: section hatch Elevation: structural support components Exhaust Major equipment Major equipment: access and clearance lines Major equipment: engineering information Major equipment: fixed Major equipment: movable Major equipment: moving or suspended Major equipment: overhead or ceiling mounted Major equipment: patterns Major equipment: undercounter Minor equipment Not in contract equipment

Q -ELEV-EQPM Q -ELEV-FIXT Q -ELEV-GLAZ Q -ELEV-HRDW Q -ELEV-OVHD Q -ELEV-PATT Q -ELEV-STRC Q -EXHS Q -MAJQ Q -MAJQ-ACCS Q -MAJQ-ENGR Q -MAJQ-FIXD Q -MAJQ-MOVE Q -MAJQ-MVNG Q -MAJQ-OVHD Q -MAJQ-PATT Q -MAJQ-UCTR

Q -MINQ

Q -CASE-DVDR Q -CASE-EDGE Q -CASE-ELEV Q -CASE-FIXT Q -CASE-FRAM Q -CASE-FULL Q -CASE-GLAZ Q -CASE-GRND Q -CASE-HRDW Q -CASE-IDEN Q -CASE-LOWR Q -CASE-PATT Q -CASE-SHLF Q -CASE-SUBA Q -CASE-UCTR Q -CASE-UPPR Q -CASE-WKSF

Q -NICN

EQUIPMENT LAYER LIST

CLG-50

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Equipment (continued) Q -POWR Q -SPCQ Q -SPCQ-ACCS Q -SPCQ-ENGR Q -SPCQ-FIXD Q -SPCQ-MOVE Q -SPCQ-MVNG Q -SPCQ-OVHD Q -SPCQ-PATT Q -SPCQ-UCTR Power Special equipment Specialized equipment: access and clearance lines Specialized equipment: engineering information Specialized equipment: fixed Specialized equipment: movable Specialized equipment: moving or suspended Specialized equipment: overhead or ceiling mounted Specialized equipment: patterns Specialized equipment: undercounter

EQUIPMENT LAYER LIST

CLG-51

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Fire Protection Layer List

Fire Protection Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Fire Protection Discipline Designators

Designator Description New

F FA FX FJ FK

Fire Protection Fire Detection and Alarm Fire Suppression User-Defined User-Defined

Fire Protection Layer List

Layer Name Description New Layer Name Description New

F -AFFF F -AFFF-EQPM F -AFFF-PIPE F -CO2S F -CO2S-EQPM F -CO2S-PIPE F -HALN F -HALN-EQPM

Aqueous film-forming foam system Aqueous film-forming foam system: equipment Aqueous film-forming foam system: piping CO2 system CO2 system: equipment CO2 system: piping Halon Halon: equipment

F -HALN-PIPE F -IGAS F -IGAS-EQPM F -IGAS-PIPE F -PROT F -PROT-ALRM F -PROT-EQPM F -PROT-SMOK F -PROT-STAN

Halon: piping Inert gas Inert gas: equipment Inert gas: piping Fire protection system Fire protection system: alarm Fire protection system: equipment Fire protection system: smoke detector / heat sensors Fire protection system: standpipe

CLG-53

FIRE PROTECTION LAYER LIST

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Fire Protection (continued) F -SPRN F -SPRN-CLHD F -SPRN-EQPM F -SPRN-OTHD F -SPRN-PIPE F -SPRN-STAN Sprinkler system Sprinkler system: ceiling heads Sprinkler system: equipment Sprinkler system: other heads Sprinkler system: piping Sprinkler system: standpipe

FIRE PROTECTION LAYER LIST

CLG-54

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Plumbing Layer List

Plumbing Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Plumbing Discipline Designators

Designator Description New

P PS PD PP PQ PL PJ PK

Plumbing Plumbing Site Plumbing Demolition Plumbing Piping Plumbing Equipment Plumbing User-Defined User-Defined

Plumbing Layer List

Layer Name Description New Layer Name Description New

P -ACID P -ACID-EQPM P -ACID-PIPE P -ACID-VENT P -DOMW

Acid waste systems Acid waste systems: equipment Acid waste systems: piping Acid waste systems: vents Domestic water systems

P -DOMW-CPIP P -DOMW-EQPM P -DOMW-HPIP P -DOMW-RISR

Domestic water systems: cold water piping Domestic water systems: equipment Domestic water systems: hot water piping Domestic water systems: hot and cold water risers

CLG-55

PLUMBING LAYER LIST

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Plumbing (continued) P -DOMW-RPIP P -MDGS P -MDGS-CAIR P -MDGS-EQPM P -MDGS-NITG P -MDGS-NOXG P -MDGS-OXYG P -MDGS-PIPE P -MDGS-SAIR P -MDGS-VACU P -SANR P -SANR-PIPE P -SANR-FIXT P -SANR-FLDR P -SANR-RISR P -SANR-EQPM P -SANR-VENT P -STRM P -STRM-PIPE P -STRM-RISR P -STRM-RFDR Domestic water systems: hot water recirculation piping Medical gas Medical gas: compressed air Medical gas: equipment Medical gas: nitrogen Medical gas: nitrous oxide Medical gas: pure O2 Medical gas: piping Medical gas: scavenge air Medical gas: medical vacuum Sanitary drainage systems Sanitary drainage systems: piping Sanitary drainage systems: plumbing fixtures Sanitary drainage systems: floor drains Sanitary drainage systems: risers Sanitary drainage systems: equipment Sanitary drainage systems: vent piping Storm drainage systems Storm drainage systems: piping Storm drainage systems: risers Storm drainage systems: roof drains

PLUMBING LAYER LIST

CLG-56

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Process Layer List

Process Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Process Discipline Designators

Designator Description New

D DS DD DJ DK DL DG DP DQ DE DI DW DC DA DX DR DM DY DO DV

Process Process Site Process Demolition User-Defined User-Defined Process Liquids Process Gases Process Piping Process Equipment Process Electrical Process Instrumentation Process Waters Process Chemicals Process Airs Process Exhaust Process Drains and Reclaims Process HPM Gases Process Slurry Process Oils Process Vacuum

CLG-57

PROCESS LAYER LIST

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Process Layer List

Layer Name Description New Layer Name Description New

Process (continued) D ANNO D BOLD D CNTR D DIMS D EQPM D FINE D HDLN D IDEN D MEDM D MISC D PATT D PHTM D PIPE D SPEC D SUPT

Any major group: any minor group: notes, callouts, specifications Any major group: any minor group: heavy Any major group: any minor group: center line Any major group: any minor group: dimensions Any major group: any minor group: equipment Any major group: any minor group: light Any major group: any minor group: hidden line Any major group: any minor group: labels, identifiers Any major group: any minor group: medium Any major group: any minor group: miscellaneous Any major group: any minor group: cross hatch Any major group: any minor group: phantom Any major group: any minor group: piping systems Any major group: any minor group: specialty items Any major group: any minor group: general pipe supports

Process (continued) D UGRD

D -DETL-BOLD

D D D D D D D D D D D D D D D D D D D D D D

-DETL-FINE -DETL-MEDM -DETL-NPLT -DETL-TEXT -PAIR-AA~~ -PAIR-BA~~ -PAIR-CA~~ -PAIR-CDA~ -PAIR-HCDA -PAIR-IA~~ -PAIR-OA~~ -PAIR-OFA~ -PAIR-PA~~ -PAIR-V~~~ -PCHM-ARC~ -PCHM-C~~~ -PCHM-DEV~ -PCHM-EG~~ -PCHM-H2O2 -PCHM-HCL~ -PCHM-HF~~ -PCHM-IPA~

Any major group: any minor group: underground Details: bold lines Details: fine lines Details: medium lines Details: nonplot layer Details: text Air: agitation air - system Air: breathable air - system Air: compressed air - system Air: clean dry air - system Air: high pressure clean dry air system Air: instrument air - system Air: outside air - system Air: oil free air - system Air: plant air - system Air: vent - system Chemical: regenerative caustic system Chemical: caustic - system Chemical: developer - system Chemical: ethylene glycol - system Chemical: hydrogen peroxide system Chemical: hydrochloric acid - system Chemical: hydrofluoric acid - system Chemical: isopropyl alcohol - system

CLG-58

PROCESS LAYER LIST

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Process (continued) D -PCHM-PHOS D -PCHM-RER~ D -PCHM-SULF

D -PCHM-TMAH

Process (continued) Chemical: phosphoric acid - system Chemical: solvent - system Chemical: sulfuric acid - system Chemical: tmah - system Drains: ammonia waste - system Drains: condensate drain - system Drains: concentrated lead waste system Drains: concentrated metals waste system Drains: copper plating waste system Drains: copper rinse waste - system Drains: copper slurry waste - system Drains: di reclaim - system Drains: dilute waste - system Drains: ethylene glycol waste system Drains: hydrofluoric waste - system Drains: industrial waste - system Drains: metals waste - system Drains: non-potable water reuse system Drains: organic industrial waste system Drains: organic liquid waste - system Drains: organic solvent waste system Drains: phosphoric acid reclaim system Drains: photo solvent waste - system D D D D D -PDRN-SDD~ -PDRN-SLW~ -PDRN-SULF -PDRN-SULR -PDRN-SW~~ Drains: scrubber duct drains system Drains: slurry waste - system Drains: sulfuric acid waste - system Drains: sulfuric acid reclaim - system Drains: solvent waste - system Drains: solvent waste flammable system Drains: solvent waste non-flammable - system Exhaust: ammonia exhaust - system Exhaust: arsenic exhaust - system Exhaust: heat exhaust - system Exhaust: scrubber exhaust - system Exhaust: solvent exhaust - system Gas: argon - system Gas: argon bulk - system Gas: butane - system Gas: chlorine gas - system Gas: hydrogen - system Gas: helium - system Gas: high purity nitrogen - system Gas: high purity oxygen - system Gas: leak check helium - system Gas: nitrogen - system Gas: nitrous oxide - system Gas: natural gas - system Gas: oxygen - system Gas: propane - system Gas: specialty gas - system Gas: utility nitrogen - system

D -PDRN-AMW~ D -PDRN-CD~~ D -PDRN-CLW~ D -PDRN-CMW~ D D D D D D D D D -PDRN-CUPW -PDRN-CURW -PDRN-CUSW -PDRN-DIRC -PDRN-DLW~ -PDRN-EGW~ -PDRN-HFW~ -PDRN-IW~~ -PDRN-MW~~

D -PDRN-SWF~

D -PDRN-NPWR D -PDRN-OIW~ D -PDRN-OLW~ D -PDRN-OSW~ D -PDRN-PHRC D -PDRN-PSW~

D D D D D D D D D D D D D D D D D D D D D D

-PDRN-SWNF -PEXH-AMEX -PEXH-AREX -PEXH-HTEX -PEXH-SCEX -PEXH-SVEX -PGAS-AR~~ -PGAS-ARB~ -PGAS-BUT~ -PGAS-CLG~ -PGAS-H2~~ -PGAS-HE~~ -PGAS-HPN2 -PGAS-HPO2 -PGAS-LCHE -PGAS-N2~~ -PGAS-N2O~ -PGAS-NG~~ -PGAS-O2~~ -PGAS-PRO~ -PGAS-SG~~ -PGAS-UN2~

PROCESS LAYER LIST

CLG-59

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

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New

Process (continued) D -PGAS-VN2~ D -PGAS-WAR~ D -PIPE-CNTR D -PIPE-EQPM D -PIPE-HDLN D -PIPE-IDEN D -PIPE-MISC D -PIPE-PATT D -PIPE-PIPE D -PIPE-UGRD D -PLQD-LPG~ D -POIL-LO~~ D -PSLR-SLR~ D -PSLR-SLS~ D -PVAC-CLV~ D -PVAC-CV~~ D -PVAC-EV~~ D -PVAC-HV~~ D -PVAC-HVA~ D -PVAC-PV~~ D -PWTR-BFW~ D -PWTR-DIR~ D D D D D -PWTR-DIS~ -PWTR-DIWP -PWTR-FW~~ -PWTR-HDIR -PWTR-HDIS

Gas: venturi nitrogen - system Gas: weld argon - system General: center line General: equipment General: hidden line General: labels & identifiers General: misc. General: crosshatch General: piping systems General: underground Liquid: liquid petroleum gas - system Oil: lube oil - system Slurry: slurry return - system Slurry: slurry supply - system Vacuum: chlorine vacuum - system Vacuum: chemical vacuum - system Vacuum: equipment vacuum system Vacuum: house vacuum - system Vacuum: arsenic house vacuum system Vacuum: vacuum - system Water: boiler feed water - system Water: deionized water return system Water: deionized water supply system Water: di polishing loop - system Water: fire water - system Water: hot di return - system Water: hot di supply - system

Process (continued) D -PWTR-HDRC D -PWTR-HPDR D -PWTR-HPDS D -PWTR-ICW~ D -PWTR-NPW~ D -PWTR-PCWR D -PWTR-PCWS D -PWTR-PW~~ D -PWTR-RO~~ D D D D -PWTR-ROR~ -PWTR-TDIR -PWTR-TDIS -PWTR-TW~~

D -PWTR-UPRW D -PWTR-UPW~

Water: hot di reclaim - system Water: high ph di return - system Water: high ph di supply - system Water: industrial city water - system Water: non-potable water - system Water: cooling water return - system Water: cooling water supply - system Water: potable water - system Water: reverse osmosis water system Water: reverse osmosis reject water - system Water: tempered di return - system Water: tempered di supply - system Water: tempered water - system Water: ultra pure recycle water system Water: ultra pure water - system

PROCESS LAYER LIST

CLG-60

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Mechanical Layer List

Mechanical Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Mechanical Discipline Designators

Designator Description New

M MS MD MH MP MI MJ MK

Mechanical Mechanical Site Mechanical Demolition Mechanical HVAC Mechanical Piping Mechanical Instrumentation User-Defined User-Defined

Mechanical Layer List

Layer Name Description New Layer Name Description New

M -ANNO M -ANNO-DLTA M -ANNO-TTLB M -ANNO-TTLB-PROS M -BRIN

Annotation Annotation: revision delta Annotation: titleblock Annotation: titleblock: date/time/file name stamp Brine systems

M -BRIN-EQPM M -BRIN-PIPE M -CHIM M -CMPA M -CMPA-ANNO

Brine systems: equipment Brine systems: piping Chimneys and stacks Compressed / processed air systems Compressed / processed air systems: annotation

CLG-61

MECHANICAL LAYER LIST

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Mechanical (continued) M -CMPA-EQPM M -CMPA-PIPE M -CMPA-PEQP M -CMPA-PPIP M -CNDW M -CNDW-ANNO M -CNDW-CONP M -CNDW-EQPM M -CNDW-PIPE M -CNDW-RETN M -CNDW-RETN-PIPE M -CNDW-RETNSKCH M -CNDW-SUPP M -CNDW-SUPP-PIPE M -CNDW-SUPPSKCH M -CNDW-SYMB M -CONT M -CONT-THER M -CONT-WIRE M -CWTR Compressed air systems: equipment Compressed air systems: piping Compressed air systems: process equipment Compressed air systems: process piping Condenser water systems Condenser water systems: annotation Condenser water systems: condensate piping Condenser water systems: equipment Condenser water systems: piping Condenser water systems: return Condenser water systems: return: piping Condenser water systems: return: sketch Condenser water systems: supply Condenser water systems: supply: piping Condenser water systems: supply: sketch Condenser water systems: symbol Controls and instrumentation Controls and instrumentation: thermostats Controls and instrumentation: low voltage wiring Chilled water systems

Mechanical (continued) M -CWTR-ANNO M -CWTR-CONP M -CWTR-PIPE M -CWTR-EQPM M -CWTR-RETN M -CWTR-RETN-PIPE M -CWTR-SUPP M -CWTR-SUPP-PIPE M -CWTR-SYMB M -DOMW M -DOMW-ANNO M -DOMW-MKUP M -DUAL M -DUAL-ANNO M -DUAL-RETN M -DUAL-RETN-PIPE M -DUAL-RETN-SKCH M -DUAL-SUPP M -DUAL-SUPP-PIPE M -DUAL-SUPP-SKCH Chilled water systems: annotation Chilled water systems: condensate piping Chilled water systems: piping Chilled water systems: equipment Chilled water systems: return Chilled water systems: return: piping Chilled water systems: supply Chilled water systems: supply: piping Chilled water systems: symbols Domestic water systems Domestic water systems: annotation Domestic water systems: make-up water Dual temperature systems Dual temperature systems: annotation Dual temperature systems: return Dual temperature systems: return: piping Dual temperature systems: return: sketch Dual temperature systems: supply Dual temperature systems: supply: piping Dual temperature systems: supply: sketch

M -CWTR-RETN-SKCH Chilled water systems: return: sketch

M -CWTR-SUPP-SKCH Chilled water systems: supply: sketch

MECHANICAL LAYER LIST

CLG-62

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Mechanical (continued) M -DUAL-SYMB M -DUST M -DUST-DUCT M -DUST-EQPM M -ELHT M -ELHT-EQPM M -ENER M -ENER-EQPM M -ENER-WIRE M -EXHS M -EXHS-CDFF M -EXHS-DUCT M -EXHS-EQPM M -EXHS-RFEQ M -FUEL M -FUEL-EQPM M -FUEL-GGEP Dual temperature systems: symbols Dust and fume collection systems Dust and fume collection systems: ductwork Dust and fume collection systems: equipment Electric heat Electric heat: equipment Energy management systems Energy management systems: equipment Energy management systems: wiring Exhaust system Exhaust system: ceiling diffusers Exhaust system: ductwork Exhaust system: equipment Exhaust system: rooftop equipment Fuel systems Fuel systems: equipment Fuel systems: gas general piping

Mechanical (continued) M -FUEL-GGEP-MPIP M -FUEL-GPRP M -FUEL-OPRP M -FUEL-OGEP Fuel systems: gas general piping: medium pressure Fuel systems: gas process piping Fuel systems: oil process piping Fuel systems: oil general piping

M -FUEL-OGEP-ANNO Fuel systems: oil general piping: annotation M -FUEL-OGEP-DISC Fuel systems: oil general piping: discharge

M -FUEL-OGEP-FLLW Fuel systems: oil general piping: flow M -FUEL-OGEP-GAGE Fuel systems: oil general piping: gauge M -FUEL-OGEP-RETN Fuel systems: oil general piping: return M -FUEL-OGEP-SUPP Fuel systems: oil general piping: supply M -FUEL-OGEP-VENT Fuel systems: oil general piping: vent M -FUEL-RPIP M -FUEL-SPIP M -FUME M -FUME-DUCT M -FUME-EQPM M -GLYC M -GLYC-ANNO M -GLYC-RETN M -GLYC-RETN-PIPE M -GLYC-RETN-SKCH M -GLYC-SUPP Fuel systems: return piping Fuel systems: supply piping Fume hood Fume hood: exhaust ductwork Fume hood: equipment Glycol systems Glycol systems: annotation Glycol systems: return Glycol systems: return: piping Glycol systems: return: sketch Glycol systems: supply

M -FUEL-GGEP-ANNO Fuel systems: gas general piping: annotation M -FUEL-GGEP-HPIP M -FUEL-GGEP-LPIP M -FUEL-GGEP-LQPG Fuel systems: gas general piping: high pressure Fuel systems: gas general piping: low pressure Fuel systems: gas general piping: liquid petroleum gas

MECHANICAL LAYER LIST

CLG-63

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Mechanical (continued) M -GLYC-SUPP-PIPE M -GLYC-SUPP-SKCH M -GLYC-SYMB M -HOTW M -HOTW-ANNO M -HOTW-EQPM M -HOTW-PIPE M -HOTW-RETN M -HOTW-RETN-PIPE M -HOTW-RETN: SKCH M -HOTW-SUPP M -HOTW-SUPP-PIPE M -HOTW-SUPPSKCH M -HOTW-SYMB M -HVAC M -HVAC-ANNO M -HVAC-BOXD M -HVAC-BOXS M -HVAC-CDFF M -HVAC-CLDA Glycol systems: supply: piping Glycol systems: supply: sketch Glycol systems: symbol Hot water heating system Hot water heating system: annotation Hot water heating system: equipment Hot water heating system: piping Hot water heating system: return Hot water heating system: return: piping Hot water heating system: return: sketch Hot water heating system: supply Hot water heating system: supply: piping Hot water heating system: supply: sketch Hot water heating system: symbol HVAC systems HVAC systems: annotation HVAC systems: mixing box, dual duct HVAC systems: mixing box, single duct HVAC systems: ceiling diffusers HVAC systems: cold air

Mechanical (continued) M -HVAC-CLDA-EQPM HVAC systems: cold air: ductwork equipment M -HVAC-CLDA-RSCH HVAC systems: cold air: sketch line round or oval duct M -HVAC-CLDA-SECT M -HVAC-CLDA-SIZE M -HVAC-CLDA-SSCH M -HVAC-DMPR M -HVAC-DOOR M -HVAC-EFAN M -HVAC-EPDU M -HVAC-EPIP M -HVAC-EQPM M -HVAC-EXHS HVAC systems: cold air: ductwork section HVAC systems: cold air: ductwork size HVAC systems: cold air: sketch line rectangular duct HVAC systems: fire, smoke, volume damper HVAC systems: equipment doors HVAC systems: equipment with electric fans HVAC systems: equipment with piping, ductwork and electricity HVAC systems: equipment with piping and electricity HVAC systems: equipment HVAC systems: exhaust air

M -HVAC-EXHS-ANNO HVAC systems: exhaust air: annotation M -HVAC-EXHS-DUCT HVAC systems: exhaust air: ductwork M -HVAC-EXHS-EQPM HVAC systems: exhaust air: ductwork equipment M -HVAC-EXHS-GRIL HVAC systems: exhaust air: grilles M -HVAC-EXHS-RSCH HVAC systems: exhaust air: sketch line round or oval duct

M -HVAC-CLDA-ANNO HVAC systems: cold air: annotation M -HVAC-CLDA-DUCT HVAC systems: cold air: ductwork

MECHANICAL LAYER LIST

CLG-64

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Mechanical (continued) M -HVAC-EXHS-SECT M -HVAC-EXHS-SIZE HVAC systems: exhaust air: ductwork section HVAC systems: exhaust air: ductwork size

Mechanical (continued) M -HVAC-RETN-EQPM HVAC systems: return ductwork: equipment M -HVAC-RETN-RSCH HVAC systems: return ductwork: sketch line round or oval duct M -HVAC-RETN-SECT M -HVAC-RETN-SIZE HVAC systems: return ductwork: ductwork section HVAC systems: return ductwork: ductwork size

M -HVAC-EXHS-SSCH HVAC systems: exhaust air: sketch line rectangular duct M -HVAC-HOTA HVAC systems: hot air M -HVAC-HOTA-ANNO HVAC systems: hot air: annotation M -HVAC-HOTA-DUCT HVAC systems: hot air: ductwork M -HVAC-HOTA-EQPM HVAC systems: hot air: ductwork equipment M -HVAC-HOTA-RSCH HVAC systems: hot air: sketch line round or oval duct M -HVAC-HOTA-SECT HVAC systems: hot air: ductwork section

M -HVAC-RETN-SSCH HVAC systems: return ductwork: sketch line rectangular duct M -HVAC-SUPP HVAC systems: supply ductwork M -HVAC-SUPP-ANNO HVAC systems: supply ductwork: annotation M -HVAC-SUPP-DUCT HVAC systems: supply ductwork: ductwork M -HVAC-SUPP-EQPM HVAC systems: supply ductwork: equipment M -HVAC-SUPP-RSCH HVAC systems: supply ductwork: sketch line round or oval duct M -HVAC-SUPP-SECT HVAC systems: supply ductwork: ductwork section M -HVAC-SUPP-SIZE HVAC systems: supply ductwork: ductwork size M -HVAC-SUPP-SSCH HVAC systems: supply ductwork: sketch line rectangular duct M -HVAC-SDFF HVAC systems: supply diffusers M -HVAC-SDFF-IDEN M -LGAS HVAC systems: supply diffusers: identification tags Laboratory gas systems

M -HVAC-HOTA-SIZE HVAC systems: hot air: ductwork size M -HVAC-HOTA-SSCH HVAC systems: hot air: sketch line rectangular duct M -HVAC-IDEN HVAC systems: identification tags M -HVAC-ODFF M -HVAC-PIPE M -HVAC-RDFF M -HVAC-RDFF-IDEN M -HVAC-RETN HVAC systems: other diffusers HVAC systems: piping HVAC systems: return air diffusers HVAC systems: return air diffusers: identification tags HVAC systems: return ductwork

M -HVAC-RETN-ANNO HVAC systems: return ductwork: annotation M -HVAC-RETN-DUCT HVAC systems: return ductwork: ductwork

MECHANICAL LAYER LIST

CLG-65

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Mechanical (continued) M -LGAS-EQPM M -LGAS-PIPE M -MACH M -MDGS M -MDGS-CAIR M -MDGS-EQPM M -MDGS-NITG M -MDGS-NOXG M -MDGS-OXYG M -MDGS-PIPE M -MDGS-SAIR M -MDGS-VACU M -MKUP M -MKUP-CDFF M -MKUP-DUCT M -MKUP-EQPM M -MPIP M -MPIP-ANNO M -MPIP-IDEN M -MPIP-PIPE M -MPIP-SYMB M -NGAS M -NGAS-EQPM M -NGAS-PIPE Laboratory gas systems: equipment Laboratory gas systems: piping Machine shop Medical gas Medical gas: compressed air Medical gas: equipment Medical gas: nitrogen Medical gas: nitrous oxide Medical gas: pure O2 Medical gas: piping Medical gas: scavenge air Medical gas: medical vacuum Make-up air systems Make-up air systems: ceiling diffusers Make-up air systems: supply ducts Make-up air systems: equipment Miscellaneous piping systems Miscellaneous piping systems: annotation Miscellaneous piping systems: identification tags Miscellaneous piping systems: piping Miscellaneous piping systems: symbols Natural gas systems Natural gas systems: equipment Natural gas systems: piping

Mechanical (continued) M -PROC M -PROC-EQPM M -PROC-PIPE M -RAIR M -RCOV M -RCOV-EQPM M -RCOV-PIPE M -REFG M -REFG-ANNO M -REFG-DISC M -REFG-EQPM M -REFG-PIPE M -REFG-RETN M -REFG-SUPP M -SMOK M -SMOK-CDFF M -SMOK-DUCT M -SMOK-EQPM M -SPCL M -SPCL-EQPM M -SPCL-PIPE M -STEM M -STEM-ANNO M -STEM-BLBD Process systems Process systems: equipment Process systems: piping Relief air systems Energy recovery systems Energy recovery systems: equipment Energy recovery systems: piping Refrigeration systems Refrigeration systems: annotation Refrigeration systems: discharge Refrigeration systems: equipment Refrigeration systems: piping Refrigeration systems: return Refrigeration systems: supply Smoke extraction systems Smoke extraction systems: ceiling diffusers Smoke extraction systems: duct Smoke extraction systems: equipment Special systems Special systems: equipment Special systems: piping Steam systems Steam systems: annotation Steam systems: boiler blow down piping

MECHANICAL LAYER LIST

CLG-66

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Mechanical (continued) M -STEM-BLBD-PIPE Steam systems: boiler blow down piping: piping M -STEM-CONP Steam systems: condensate piping M -STEM-CONP-PIPE Steam systems: condensate piping: piping M -STEM-CONP-SKCH Steam systems: condensate piping: sketch M -STEM-EQPM Steam systems: equipment M -STEM-HPIP M -STEM-HPIP-PIPE M -STEM-HPIP-SKCH M -STEM-LPIP M -STEM-LPIP-PIPE M -STEM-LPIP-SKCH M -STEM-MPIP M -STEM-MPIP-PIPE M -STEM-MPIP-SKCH M -STEM-SYMB M -TEST Steam systems: high-pressure steam piping Steam systems: high-pressure steam piping: piping Steam systems: high-pressure steam piping: sketch Steam systems: low-pressure steam piping Steam systems: low-pressure steam piping: piping Steam systems: low-pressure steam piping: sketch Steam systems: medium-pressure steam piping Steam systems: medium-pressure steam piping: piping Steam systems: medium-pressure steam piping: sketch Steam systems: symbols Test equipment

MECHANICAL LAYER LIST

CLG-67

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Electrical Layer List

Electrical Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Electrical Discipline Designators

Designator Description New

E ES ED EP EL EI ET EY EJ EK

Electrical Electrical Site Electrical Demolition Electrical Power Electrical Lighting Electrical Instrumentation Electrical Telecommunications Electrical Auxiliary Systems User-Defined User-Defined

Electrical Layer List

Layer Name

Description

New

Layer Name

Description

New

E E E -ALRM E -AUXL

-1LIN -RISR

Any major group: one-line diagrams Any major group: riser diagram Alarm system Auxiliary systems

E -BELL E -CABL E -CABL-ANNO E -CABL-ANNO-KEYN

Bell system Cable system Cable system: annotation Cable system: annotation: keynotes

CLG-69

ELECTRICAL LAYER LIST

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Electrical (continued) E -CABL-ANNO-NOTE E -CABL-COAX E -CABL-FIBR E -CABL-MULT E -CABL-REVC E -CABL-REVS E -CABL-TRAY E -CCTV E -CLOK E -CLOK-ANNO E -CLOK-ANNO-KEYN E -CLOK-ANNO-NOTE E -CLOK-CIRC E -CLOK-CLNG E -CLOK-CNMB E -CLOK-EQPM E -CLOK-FLOR E -CLOK-IDEN E -CLOK-REVC E -CLOK-REVS E -CLOK-WALL E -COMM E -COMM-ANNO E -COMM-ANNOKEYN Cable system: annotation: notes Cable system: coax cable Cable system: fiber optics cable Cable system: multi-conductor cable Cable system: revision clouds Cable system: revisions Cable system: cabletray and wireways Closed-circuit TV Clock system Clock system: annotation Clock system: annotation: keynotes Clock system: annotation: notes Clock system: circuits Clock system: ceiling-mounted Clock system: circuit numbers Clock system: equipment Clock system: floor-mounted Clock system: identification and text Clock system: revision clouds Clock system: revisions Clock system: wall-mounted Telephone, communication outlets Telephone, communication outlets: annotation Telephone, communication outlets: annotation: keynotes

Electrical (continued) E -COMM-ANNONOTE E -COMM-CIRC E -COMM-CLNG E -COMM-CNMB E -COMM-EQPM E -COMM-IDEN E -COMM-REVC E -COMM-REVS E -COMM-WALL E -CTRL E -CTRL-DEVC E -CTRL-WIRE E -DATA E -DATA-ANNO E -DATA-ANNO-KEYN E -DATA-ANNO-NOTE E -DATA-CIRC E -DATA-CLNG E -DATA-CNMB E -DATA-EQPM Telephone, communication outlets: annotation: notes Telephone, communication outlets: circuits Telephone, communication outlets: ceiling-mounted Telephone, communication outlets: circuit numbers Telephone, communication outlets: equipment Telephone, communication outlets: identification and text Telephone, communication outlets: revision clouds Telephone, communication outlets: revisions Telephone, communication outlets: wall-mounted Control systems Control systems: devices Control systems: wiring Data outlets Data outlets: annotation Data outlets: annotation: keynotes Data outlets: annotation: notes Data outlets: circuits Data outlets: ceiling-mounted Data outlets: circuit numbers Data outlets: equipment

ELECTRICAL LAYER LIST

CLG-70

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Electrical (continued) E -DATA-FLOR E -DATA-IDEN E -DATA-REVC E -DATA-REVS E -DATA-WALL E -DIAG E -DIAG-ANNO E -DIAG-ANNO-KEYN E -DIAG-ANNO-NOTE E -DIAG-BKRS E -DIAG-BUSS E -DIAG-ENCL E -DIAG-EQPM E -DIAG-FEED E -DIAG-FLOR E -DIAG-GRND E -DIAG-REVC E -DIAG-REVS E -DIAG-SWCH E -DIAG-XFMR E -DICT E -DICT-ANNO E -DICT-ANNO-KEYN E -DICT-ANNO-NOTE E -DICT-CIRC Data outlets: floor-mounted Data outlets: identification and text Data outlets: revision clouds Data outlets: revisions Data outlets: wall-mounted Diagrams Diagrams: annotation Diagrams: annotation: keynotes Diagrams: annotation: notes Diagrams: breakers Diagrams: bus duct Diagrams: equipment enclosures Diagrams: equipment Diagrams: feeders Diagrams: floor lines Diagrams: grounding Diagrams: revision clouds Diagrams: revisions Diagrams: switches Diagrams: transformers Central dictation system Central dictation system: annotation Central dictation system: annotation: keynotes Central dictation system: annotation: notes Central dictation system: circuits

Electrical (continued) E -DICT-CLNG E -DICT-CNMB E -DICT-EQPM E -DICT-IDEN E -DICT-REVC E -DICT-REVS E -DICT-WALL E -FIRE E -FIRE-ANNO E -FIRE-ANNO-KEYN E -FIRE-ANNO-NOTE E -FIRE-CIRC E -FIRE-CLNG E -FIRE-CNMB E -FIRE-EQPM E -FIRE-IDEN E -FIRE-REVC Central dictation system: ceilingmounted Central dictation system: circuit numbers Central dictation system: equipment Central dictation system: identification and text Central dictation system: revision clouds Central dictation system: revisions Central dictation system: wallmounted Fire alarm, fire extinguishers Fire alarm, fire extinguishers: annotation Fire alarm, fire extinguishers: annotation: keynotes Fire alarm, fire extinguishers: annotation: notes Fire alarm, fire extinguishers: circuits Fire alarm, fire extinguishers: ceilingmounted Fire alarm, fire extinguishers: circuit numbers Fire alarm, fire extinguishers: equipment Fire alarm, fire extinguishers: identification and text Fire alarm, fire extinguishers: revision clouds

ELECTRICAL LAYER LIST

CLG-71

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Electrical (continued) E -FIRE-REVS E -FIRE-WALL E -GRND E -GRND-ANNO Fire alarm, fire extinguishers: revisions Fire alarm, fire extinguishers: wallmounted Ground system Ground system: annotation

Electrical (continued) E -INST-CNMB E -INST-EQPM E -INST-IDEN E -INST-REVC E -INST-REVS E -INST-WALL E -INTC E -LEGN E -LITE E -LITE-ANNO E -LITE-ANNO-KEYN E -LITE-ANNO-NOTE E -LITE-CIRC E -LITE-CIRC-CRIT E -LITE-CIRC-EMER E -LITE-CIRC-NUMB E -LITE-CLNG E -LITE-CLNG-CRIT E -LITE-CLNG-EMER E -LITE-CLNG-EXIT E -LITE-CNMB E -LITE-CNMB-CRIT E -LITE-CNMB-EMER E -LITE-EMER E -LITE-EQPM Instrumentation system: circuit numbers Instrumentation system: equipment Instrumentation system: identification and text Instrumentation system: revision clouds Instrumentation system: revisions Instrumentation system: wall-mounted Intercom system Legend of symbols Lighting Lighting: annotation Lighting: annotation: keynotes Lighting: annotation: notes Lighting: circuits Lighting: circuits: critical Lighting: circuits: emergency Lighting: circuits: numbers Lighting: ceiling-mounted Lighting: ceiling-mounted: critical Lighting: ceiling-mounted: emergency Lighting: ceiling-mounted: exit Lighting: circuit numbers Lighting: circuit numbers: critical Lighting: circuit numbers: emergency Lighting: emergency Lighting: equipment

CLG-72

E -GRND-ANNO-KEYN Ground system: annotation: keynotes E -GRND-ANNO-NOTE Ground system: annotation: notes E -GRND-CIRC Ground system: circuits E -GRND-CLNG E -GRND-CNMB E -GRND-DIAG E -GRND-EQPM E -GRND-IDEN E -GRND-REFR E -GRND-REVC E -GRND-REVS E -GRND-WALL E -GRND-EQUI E -INST E -INST-ANNO E -INST-ANNO-KEYN E -INST-ANNO-NOTE E -INST-CIRC E -INST-CLNG Ground system: ceiling-mounted Ground system: circuit numbers Ground system: diagram Ground system: equipment Ground system: identification and text Ground system: reference Ground system: revision clouds Ground system: revisions Ground system: wall-mounted Ground system: equipotential Instrumentation system Instrumentation system: annotation Instrumentation system: annotation: keynotes Instrumentation system: annotation: notes Instrumentation system: circuits Instrumentation system: ceilingmounted

ELECTRICAL LAYER LIST

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Electrical (continued) E -LITE-EQPM-CRIT E -LITE-EQPM-EMER E -LITE-EXIT E -LITE-EXTR E -LITE-FLOR E -LITE-OTLN E -LITE-SPCL E -LITE-REVC E -LITE-REVS E -LITE-ROOF E -LITE-WALL E -LITE-WALL-CRIT E -LITE-WALL-EMER E -LITE-WALL-EXIT E -LITE-SWCH E -LITE-SWCH-CRIT E -LITE-SWCH-EMER E -LITE-IDEN E -LITE-IDEN-CRIT E -LITE-IDEN-EMER E -LITE-JBOX E -LTNG E -LTNG-ANNO E -LTNG-ANNO-KEYN Lighting: equipment: critical Lighting: equipment: emergency Lighting: exit Lighting: exterior and site Lighting: floor-mounted Lighting: outline for background Lighting: special Lighting: revision clouds Lighting: revisions Lighting: roof lighting Lighting: wall-mounted Lighting: wall-mounted: critical Lighting: wall-mounted: emergency Lighting: wall-mounted: exit Lighting: switches Lighting: switches: critical Lighting: switches: emergency Lighting: identification and text Lighting: identification and text: critical Lighting: identification and text: emergency Lighting: junction box Lightning protection system Lightning protection system: annotation Lightning protection system: annotation: keynotes

Electrical (continued) E -LTNG-ANNO-NOTE E -LTNG-CIRC E -LTNG-CLNG E -LTNG-CNMB E -LTNG-EQPM E -LTNG-IDEN E -LTNG-REVC E -LTNG-REVS E -LTNG-WALL E -NURS Lightning protection system: annotation: notes Lightning protection system: circuits Lightning protection system: ceilingmounted Lightning protection system: circuit numbers Lightning protection system: equipment Lightning protection system: identification and text Lightning protection system: revision clouds Lightning protection system: revisions Lightning protection system: wallmounted Nurse call system

E -NURS-ANNO Nurse call system: annotation E -NURS-ANNO-KEYN Nurse call system: annotation: keynotes E -NURS-ANNO-NOTE Nurse call system: annotation: notes E -NURS-CIRC E -NURS-CLNG E -NURS-CNMB E -NURS-EQPM E -NURS-FLOR E -NURS-IDEN E -NURS-REVC Nurse call system: circuits Nurse call system: ceiling-mounted Nurse call system: circuit numbers Nurse call system: equipment Nurse call system: floor-mounted Nurse call system: identification and text Nurse call system: revision clouds

ELECTRICAL LAYER LIST

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U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Layer Name

Description

New

Electrical (continued) E -NURS-REVS E -NURS-WALL E -PGNG E -POWR E -POWR-ANNO E -POWR-ANNOKEYN E -POWR-ANNONOTE E -POWR-BUSW E -POWR-CABL E -POWR-CIRC E -POWR-CIRC-CRIT Nurse call system: revisions Nurse call system: wall-mounted Paging system Power Power: annotation Power: annotation: keynotes Power: annotation: notes Power: busways Power: cable trays Power: circuits Power: circuits: critical

Electrical (continued) E -POWR-SWBD E -POWR-URAC E -POWR-UCPT E -POWR-ROOF E -POWR-REVC E -POWR-REVS E -POWR-WALL E -POWR-WALL-CRIT E -SERT E -SERT-ANNO E -SERT-ANNO-KEYN E -SERT-ANNO-NOTE E -SERT-CIRC E -SERT-CLNG E -SERT-CNMB E -SERT-EQPM E -SERT-FLOR E -SERT-IDEN E -SERT-REVC E -SERT-REVS E -SERT-WALL E -SITE E -SITE-UNDR E -SITE-POLE E -SITE-OVHD E -SOUN E -TVAN Power: switchboards Power: underfloor raceways Power: under-carpet wiring Power: roof Power: revision clouds Power: revisions Power: wall-mounted Power: wall-mounted: critical Security Security: annotation Security: annotation: keynotes Security: annotation: notes Security: circuits Security: ceiling-mounted Security: circuit numbers Security: equipment Security: floor-mounted Security: identification and text Security: revision clouds Security: revisions Security: wall-mounted Site Site: underground lines Site: electric poles Site: overhead lines Sound/PA system TV antenna system

E -POWR-CIRC-NUMB Power: circuits: numbers E -POWR-CLNG Power: ceiling-mounted E -POWR-CLNG-CRIT E -POWR-CNMB E -POWR-CNMB-CRIT E -POWR-DEVC E -POWR-EQPM E -POWR-EQPM-CRIT E -POWR-EXTR E -POWR-FEED E -POWR-FLOR E -POWR-FLOR-CRIT E -POWR-IDEN E -POWR-JBOX E -POWR-PANL Power: ceiling-mounted: critical Power: circuit numbers Power: circuit numbers: critical Power: devices Power: equipment Power: equipment: critical Power: exterior Power: feeders Power: floor-mounted Power: floor-mounted: critical Power: identification and text Power: junction box Power: panels

ELECTRICAL LAYER LIST

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© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

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Layer Name

Description

New

Electrical (continued) E -TVAN-ANNO E -TVAN-ANNO-KEYN E -TVAN-ANNO-NOTE E -TVAN-CIRC E -TVAN-CLNG E -TVAN-CNMB E -TVAN-EQPM E -TVAN-IDEN E -TVAN-REVC E -TVAN-REVS E -TVAN-WALL TV antenna system: annotation TV antenna system: annotation: keynotes TV antenna system: annotation: notes TV antenna system: circuits TV antenna system: ceiling-mounted TV antenna system: circuit numbers TV antenna system: equipment TV antenna system: identification and text TV antenna system: revision clouds TV antenna system: revisions TV antenna system: wall-mounted

ELECTRICAL LAYER LIST

CLG-75

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Telecommunications Layer List

Telecommunications Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Telecommunications Discipline Designators

Designator Description New

T TA TC TI TM TN TT TY TJ TK

Telecommunications Audio Visual Clock and Program Intercom Monitoring Data Networks Telephone Security User-Defined User-Defined

Telecommunications Layer List

Layer Name Description New Layer Name Description New

T T T T T -

-1LIN -DIAG -EQPM -JACK -JBOX

Any major group: one-line diagrams Any major group: diagrams Any major group: equipment Any major group: jacks Any major group: junction boxes

T -RISR T -ALRM T -BELL T -CABL T -CABL-COAX

Any major group: riser diagrams Alarm system Bell system Cable systems Cable systems: coax cable

CLG-77

TELECOMMUNICATIONS LAYER LIST

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Layer Name

Description

New

Telecommunications (continued) T -CABL-FIBR T -CABL-MULT T -CABL-TRAY T -CATV T -CLOK T -CCTV T -DATA T -DICT T -ELEC T -EMCS T -FIRE T -INTC T -NURS T -PGNG T -PHON T -SERT T -SOUN T -TVAN Cable systems: fiber optics cable Cable systems: multi-conductor cable Cable systems: cable tray & wireway Cable television system Clock systems Closed-circuit television system Data / LAN system Dictation system Electrical system, telecom plan Energy monitoring control system Fire alarm system Intercom / PA systems Nurse call system Paging system Telephone system Security system Sound system Television antenna system

TELECOMMUNICATIONS LAYER LIST

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Resource Layer List

Resource Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Resource Discipline Designators

Designator Description New

R RC RS RA RM RE RJ RK

Resource Resource Civil Resource Structural Resource Architectural Resource Mechanical Resource Electrical User-Defined User-Defined

Resource Layer List

Layer Name Description New

No layer names have been prescribed for this discipline.

RESOURCE LAYER LIST

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Other Disciplines Layer List

Other Disciplines Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Other Disciplines Discipline Designators

Designator Description New

X XJ XK

Other Disciplines User-Defined User-Defined

Other Disciplines Layer List

Layer Name Description New

No layer names have been prescribed for this discipline.

OTHER DISCIPLINES LAYER LIST

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Contractor/Shop Drawing Layer List

Contractor/Shop Drawing Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Contractor/Shop Drawing Discipline Designators

Designator Description New

Z ZJ ZK

Contractor/Shop Drawings User-Defined User-Defined

Contractor/Shop Drawing Layer List

Layer Name

Description New

No layer names have been prescribed for this discipline.

CONTRACTOR/SHOP DRAWING LAYER LIST

CLG-83

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Operations Layer List

Operations Field Codes

The Layer Names shown below provide examples for the use of Major and Minor Group field codes for this discipline. See page CLG-8 for complete rules and options governing the use of Major and Minor Group field codes.

Operations Discipline Designators

Designator Description New

O OJ OK

Operations User-Defined User-Defined

Operations Layer List

Layer Name Description New

No layer names have been prescribed for this discipline.

OPERATIONS LAYER LIST

CLG-85

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© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

Commentary: U.S. NCS and ISO 13567

Overview

(MANDATORY FIELDS) (OPTIONAL FIELDS)

A1B2 1 0 _ _ D

Agent Responsible [Building] Element

NB 1 0 1 3 1 F RC

Phase Projection Scale Work Status Sector

The International Standards Organization (ISO) is the only recognized international body promulgating standards in the area of electronic building design data. ISO Standard 13567, Organization and Naming of Layers for CAD, can be purchased at http://www.ansi.org. The complete document is in three parts: 13567-1, 13567-2, and 13567-3. While the U.S. NCS and ISO 13567 differ somewhat in their approach to standards for CAD layers, they are alike in several important respects. Both standards specify the names of the data fields that make up a typical layer name, define the field names, specify which fields are mandatory (required) and which fields are optional, specify the number of characters in each field, and specify the order in which the fields are to appear. When one compares the NCS and ISO layer formats shown at left, the question immediately arises whether it is possible to produce electronic building design documents that conform to both the U.S. NCS and ISO 13567. The answer is a qualified "yes."

Presentation

ISO 13567 Layer Format

(REQUIRED FIELDS)

(OPTIONAL FIELDS)

A I - WAL L - FUL L - TEXT - N

Major Group Discipline Designator U.S. NCS Layer Format Minor Group 1 Minor Group 2 Status

Both standards provide several options for naming layers. The range of options allows either standard to meet the needs of diverse users and projects. By carefully choosing from among the available U.S. NCS options for naming CAD layers, and by establishing and adhering to the guidelines at the end of this Commentary, documents can be produced that are in full conformance with the U.S. NCS and in conceptual conformance with ISO 13567 for the naming of CAD layers (an acceptable alternative to ISO default conformance). Adoption of the approach outlined herein could arguably reduce the effort required to produce documents in conformance with ISO 13567 by eliminating the ISO-mandated task of prescribing valid field codes for each project.

COMMENTARY: U.S. NCS AND ISO 13567

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Field Codes

TWO STANDARDS OR ONE?

·

The U.S. NCS offers users an opportunity to comply with both U.S. and ISO CAD standards. By adhering to the guidelines in this commentary, summarized in ten (10) steps on the last page, the U.S. NCS becomes a "country-specific" implementation of the ISO CAD Standard. For design firms doing international work, using the U.S. NCS can simplify the ISOmandated task of preparing the layer naming system definition file that must accompany the project data files on every project. A default ISO Layer Naming System Definition File based on the U.S. NCS is available at: http://www.nationalcadstandard.org Users may customize this file for specific projects.

The U.S. NCS and ISO 13567 differ in one important respect. The U.S. NCS prescribes the valid alpha-numeric field codes that can appear in each data field, and the definitions of the field codes (e.g., EQPM = equipment). Users of ISO 13567 must determine, for each project, the valid field codes for that project and their definitions. ISO 13567 users are required to document this information in a metadata file known as a layer naming system definition file that must accompany the project data files. In its simplest form, this is nothing more than a tab-delimited text file. There are valid reasons for both approaches. The prescriptive approach of the U.S. NCS relieves users of the task of developing and documenting field codes for every project. However, in order to accommodate all possible users, the list of prescribed NCS field codes must be comprehensive. By not prescribing field codes, ISO 13567 allows the ISO layer format to be applied uniformly without having to define all possible field codes in advance.

·

Field Codes and Language

By not prescribing field codes, ISO 13567 also allows the ISO layer format to be applied uniformly without regard to language. Users may, if they wish, develop codes endowed with language-specific meaning. Citing our earlier example, English users might use the field code "EQPM" to represent the [major building] element "equipment," while users in another language group might use another field code that has similar mnemonic association to the word for "equipment" in that language. While the field codes themselves might differ, the category of information contained in any given field is defined by the standard, facilitating translation of the actual content. In practice, ISO 13567 users tend to favor numeric codes to define the content of data fields. This eliminates any need to "translate" the field codes themselves. If, for example, the field code "720" is prescribed to mean "equipment," then only the definition, and not the code itself, would need to be translated. This eliminates the need for "translating" the actual file or layer name.

·

COMMENTARY: U.S. NCS AND ISO 13567

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Default ISO Layer Format (Mandatory Fields)

ISO 13567 Conformance

CAD data sets that adhere to ISO 13567 with respect to field names, field length, field definition and field order (as shown at left), and that are accompanied by the required layer naming system definition file, are defined by ISO to be in default conformance with the ISO standard. ISO 13567 anticipates that groups of users or national standards bodies might not only wish to prescribe a list of valid field codes (as the U.S. NCS has done), but might also wish to vary from the specified ISO layer format. 13567-3 is explicitly designed "to allow national standards bodies (or projects where agreement is reached between the parties) to implement layer naming conventions which satisfy the requirements of the [ISO] standard while using alternative and more convenient layer naming structures and codes." To permit this, ISO 13567-3 establishes rules for modifying the layer format itself. As with the field codes, users are required to fully document layer format modifications in the layer naming system definition file. CAD data sets that adhere to these rules are defined by ISO as being in conceptual conformance with the ISO standard, an approved alternative to default conformance. The rules for conceptual conformance specify that the mandatory data fields must always be used, but the order of all fields in the layer name (both mandatory and optional), the number of optional fields used, and the number of characters in each field can vary from the default ISO layer format. Additionally, the names of the fields can differ from the names specified, as long as the conceptual definition of each field conforms to the ISO standard. All modifications to the default layer format must be applied uniformly throughout the project. Layer names must all be of the same length, use the same set of mandatory and optional fields in the same order, and have the same number of characters per field. These rules allow data sets created in conceptual conformance with ISO 13567 to be mapped to the ISO 13567 default layer format. However, ISO does not require users to actually "map" or otherwise convert the data into the default layer format.

Agent Responsible

A1B2 1 0 _ A1B2 1 0 _ A1B2 1 0 _

D D

NB 1 0 1 3 1 F RC NB 1 0 1 3 1 F RC

[Building] Element

Presentation

D _ NB 1 0 1 3 1 F RC

(Optional Fields)

A1B2 1 0 _ A1B2 1 0 _ A1B2 1 0 _ A1B2 1 0 _ A1B2 1 0 _ A1B2 1 0 _

D _ NB 1 0 1 3 1 F RC

Status

D _ NB 1 0 1 3 1 FRC

Sector

D _ NB 1 0 1 3 1 F RC

Phase

D _ NB 1 0 1 3 1 F RC

Projection

D _ NB 1 0 1 3 1 F RC

Scale

D _ NB 1 0 1 3 1 F RC

Work Package

COMMENTARY: U.S. NCS AND ISO 13567

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VERSION 3.1

Field Name Comparison Table NCS Field Name Discipline Designator Major & Minor Groups Annotation Minor Group* Status** (none) Status (Phase)** Dwg. View Minor Group*** (none) (none) ISO Field Name Agent Responsible Element Presentation Status Sector Phase Projection Scale Work Package

Field Names and Definitions

Though the specified field names in the U.S. NCS layer format differ from the specified field names in the ISO layer format, the definitions of the field names are conceptually the same (with one important exception, discussed in the next paragraph below). This allows NCS-compliant data to meet the principal ISO 13567 criterion for conceptual conformance. The Field Name Comparison Table at left highlights additional rules that must be followed to create data that is in conformance with both the U.S. NCS and ISO 13567.

"Discipline Designator" vs. "Agent Responsible"

The conceptual definitions of these corresponding field names in the U.S. NCS and ISO 13567 differ sufficiently to merit detailed discussion. The definition for Discipline Designator is defined in NCS Version 2.0 as "the category of subject matter contained in the file or layer designated." In other words, if the information contained is "structural," the file or layer name will begin with the Discipline Designator "S," regardless of who created the data. ISO 13567 defines Agent Responsible as "the construction specialist responsible for the data." Regrettably, ISO 13567 does not further define the terms "construction specialist" and "responsible for." "Construction specialist" could be interpreted to mean "design professional," "design drafter," or even "skilled tradesperson or contractor." Though the text of ISO 13567 does not define which of these individuals is the "agent responsible," one can reasonably infer from the sample layer naming system definition file shown in Annex A of ISO 13567-3 that "construction specialist" is defined as the design professional.

* **

ISO compliance requires that the last NCS Minor Group field be reserved for annotation. ISO compliance requires that this field be reserved for status OR project phase, but not both; duplicate use of the field is not permitted.

*** ISO compliance requires that Drawing View field names not appear in the same fields as Major or Minor Group fields that define major building elements. If both annotation and drawing view are to be included in any layer names, one Minor Group Field must be reserved for Annotation and the other for Drawing View.

"Agent Responsible" and Professional Liability

Identifying the design professional as the "construction specialist" still allows considerable room for interpretation of the definition for "agent responsible." It could be interpreted to mean either "design professional who is professionally liable for the

COMMENTARY: U.S. NCS AND ISO 13567

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© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

information by virtue of professional licensure and role on the project," or, alternatively, "design professional who is professionally liable for the information by virtue of having signed and sealed the document in question." An example is a lighting plan prepared under the supervision of, and signed and sealed by, the architect. Should the field code for this drawing file or layer name be "E" or "A?" If the field code is "E," is the Electrical Engineer still the designated "Agent Responsible," and therefore professionally liable for data created by others not under his/her supervision? The burden of professional liability borne by design professionals is generally less in other countries than it is in the U.S. Perhaps for this reason, the issue of defining agent responsible more precisely with respect to professional liability did not arise when this field name was defined by ISO 13567. In the U.S., however, use of the imprecise ISO definition for agent responsible might possibly expose design professionals to professional liability for data over which they had no oversight.

"Discipline Designator" and the Building Life Cycle

The U.S. NCS definition for the field Discipline Designator was agreed-upon following considerable debate by the U.S. NCS Project Committee, and with the full understanding that it differed from the conceptual definition of the corresponding ISO 13567 field Agent Responsible. In addition to the liability issues cited above, it was the consensus of the Project Committee that the ability to identify the data by subject matter throughout the life-cycle of a building facility was ultimately more important than the identity of the person or persons who originally created the data.

"Discipline Designator" and ISO 13567 Conformance

The difference in the conceptual definitions of Discipline Designator and Agent Responsible would seem to be an insurmountable obstacle to creating data in conformance with both the U.S. NCS and ISO 13567. This is not necessarily true. In most cases, the content of the fields Discipline Designator and Agent Responsible are one and the same, regardless of the definition. For example, if the subject matter

COMMENTARY: U.S. NCS AND ISO 13567

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© 2005. NATIONAL INSTITUTE OF BUILDING SCIENCES

VERSION 3.1

contained in the drawing file or layer is "mechanical systems," the mechanical engineer is likely to be the design professional under whose supervision the data was created.

U.S. NCS Field Code Restrictions (for conceptual conformance to ISO 13567)

The field code "ANNO" may NOT be used, because "annotation" is not a major building "element:"

A I - ANNO - T E X T - N

Major Group (Element) The Annotation Minor Group field codes MAY be used, provided the field is reserved for these codes. Two allowable formats are shown:

Users who wish to produce data that is in conformance with the U.S. NCS and in conceptual conformance with ISO 13567 can do so by establishing a rule for their projects that data will be created only under the supervision of the design professional typically responsible for the subject matter. In this way, the conceptual definition for the data field can be BOTH "category of subject matter contained in the file or layer designated" AND "construction specialist responsible for the data." Implementation of this rule can help reduce the risk of professional liability by minimizing the likelihood of conflicts that might arise when different elements of the same building system are designed by more than one design professional.

A I - WA L L - T E X T - N

(Presentation) Annotation

Field Code Restrictions

A key principal of the ISO 13567 layer format is that each data field can be used to define only one category of data. Duplicate use of a field is prohibited. This ensures that data sets in conceptual conformance can be readily mapped to the ISO default layer format. Adherence to this provision requires U.S. NCS users to restrict their use of certain U.S. NCS field codes. The U.S. NCS allows "ANNO" to be used as a Major Group, which allows all annotation to be placed in a defined group of layers. This results in a duplicate use of the Major Group field. The corresponding field in ISO, "Element," is reserved for major building elements. Therefore, the field code "ANNO" cannot be used at all (Figure 1). However, the prescribed annotation Minor Group field codes (TEXT, DIMS, etc.) can be used to modify any preceding Major/Minor Group, provided that the field in which they appear is reserved for annotation field codes. If Drawing View field codes are used (Figure 2), the Minor Group field in which they appear must likewise exclude any other field codes. If the Status field is used (Figure 3), the allowable field codes must be restricted to the specified letters (to correspond to the ISO field "Status") or to the specified numbers (to correspond to the ISO field "Phase") but not both.

COMMENTARY: U.S. NCS AND ISO 13567 CLG-92

A I - WA L L - F U L L - T E X T - N

(Presentation) Annotation

Figure 1 - Annotation Field Codes

Two allowable formats for Drawing View field codes:

A I - WA L L - E L E V - N

(Projection) Drawing View

A I - WA L L - F U L L - E L E V - N

(Projection) Drawing View

Figure 2 - Drawing View Field Codes

Two allowable formats for Status field codes.

A - WA L L - E L E V - T E X T - N A - WA L L - E L E V - T E X T - 2

Figure 3 - "Status" field codes

(Status) Status

(Phase) Status

U.S. NATIONAL CAD STANDARD FOR ARCHITECTURE, ENGINEERING, & CONSTRUCTION (A/E/C)

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Example U.S. NCS Layer Formats (in conceptual conformance to ISO 13567)

U.S. NCS and ISO 13567 Implementation Options

The examples shown here illustrate two possible U.S. NCS layer formats that are in conceptual conformance with ISO 13567. Note that ISO 13567 does not use dashes as field delimiters. For purposes of ISO conformance, the dashes in the NCS layer format are defined as an additional character of the field preceding it. Example 1 shows the optional two-character U.S. NCS Level 2 Discipline Designator; together with the dash that follows it, this field is defined as three (3) characters in length. A Major and one Minor Group are defined as corresponding to the ISO field [Building] "Element." The field is ten (10) characters in length. The second Minor Group is reserved for Annotation field codes, corresponds to the ISO field "Presentation," and is five (5) characters in length. The final field is Status, which corresponds to the ISO field of the same name, and is one (1) character in length. Example 2 shows the U.S. NCS required Level 1 Discipline Designator only, and is defined as two (2) characters in length. The Major Group is defined as corresponding to the ISO field [Building] "Element," and is five (5) characters in length. The first Minor Group is reserved for Drawing View field codes, corresponds to the ISO field "Projection," and is five (5) characters in length. The second Minor Group is reserved for Annotation field codes, corresponds to the ISO field "Presentation," and is five (5) characters in length. The final field is reserved for Phase field codes, corresponds to the ISO field "Phase," and is one (1) character in length. Note that for ISO conformance, the total length of the layer name must be the same for all layers on a given project. Layer names that do not require a certain field, such as "Annotation," must use placeholders (usually dashes or underscores) to maintain the length of the layer name and the relative position of the fields. While the ISO 13567 rules for conceptual conformance allow the fields to appear in any order, this is not permitted by the U.S. NCS. The fields must be in the order of Discipline Designator, Major Group, Minor Group 1, Minor Group 2, Status. If a Minor Group field is used to modify the "building element" shown in the Major Group, that Minor Group must appear immediately following the Major Group.

Level 2 Discipline Designator (Agent Responsible)

A I - WA L L - F U L L - T E X T - N A I - WA L L - F U L L - T E X T - N

Major, Minor Group (Element)

A I - WA L L - F U L L - T E X T - N

(Presentation) Annotation

A I - WA L L - F U L L - T E X T - N

(Status) Status

Example 1

Level 1 Discipline Designator (Agent Responsible)

A - WA L L - E L E V - T E X T - 2

A - WA L L - E L E V - T E X T - 2

Major Group (Element)

A - WA L L - E L E V - T E X T - 2

Drawing View (Projection)

A - WA L L - E L E V - T E X T - 2

(Presentation) Annotation

A - WA L L - E L E V - T E X T - 2

Example 2

(Phase) Status

COMMENTARY: U.S. NCS AND ISO 13567

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Required Use of Placeholders (for conceptual conformance to ISO 13567)

U.S. NCS and ISO 13567 Implementation Guidelines

The information in this Commentary is summarized in the following steps for preparing documents with layer names in conformance with the U.S. NCS and in conceptual conformance with ISO 13567. While these guidelines are intended to aid U.S. NCS users, adherence to these rules in some form would be required by ISO 13567 whether or not the U.S. NCS layer format were used. 1. Require that all documents be prepared only under the supervision of the design professional typically responsible for the subject matter contained in the documents. 2. Do not use the field code "ANNO" in any layer name. 3. Determine whether the Discipline Designator will be one character (Level 1) or two characters (Level 2) in length. 4. Determine whether the "building element" will consist of a Major Group only, or of a Major Group and one Minor Group. 5. Determine whether a Minor Group is to be reserved for Drawing View field codes, and fix its position in the sequence of fields. 6. Determine whether a Minor Group is to be reserved for Annotation field codes, and fix its position in the sequence of fields. 7. Note that only two Minor Groups are available. Of the three options described in 4, 5, and 6 above, only two can be exercised on a given project. 8. Determine whether to include the Status field in the layer name and whether to use the specified letters to denote "Status," or the specified numbers to denote "Phase." 9. For layer names in which one or more fields are not required, use placeholders (dashes or underscores) to maintain consistent layer name length and the relative positions of fields (Figure 4). 10. Prepare a layer naming system definition file in accordance with ISO 13567-3 that defines the selected layer format for the project.

Layers in which reserved field codes are not used must have placeholders in the reserved fields.

A - WA L L - E L E V - _ _ _ _ - N A - WA L L - E L E V - T E X T - N

Figure 4

COMMENTARY: U.S. NCS AND ISO 13567

CLG-94

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