1D.1 Layer Development

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.

Layer naming generally follows the CAD LAYER GUIDELINES, NCS 6.0 Edition, published by the American Institute of Architects (AIA). There are five defined layer name data fields: Discipline Designator, Major Group, two Minor Groups, and Status. Each data field is separated from adjacent fields by a dash (“-”) for clarity. Below are guidelines for compiling a layer name, followed by a table of common layer names.

A four-letter major group and either one or two four-letter minor groups follow the discipline designator in a layer name. Common major and minor groups are listed below:

Once the discipline designator, major and minor categories have been chosen, the final portion of the layer name is the status. This describes to the user what the disposition is of the entities on that layer, and helps to determine if that layer should or should not be shown on a particular drawing sheet. Note that AutoCAD uses a single letter abbreviation for its status categories. MDOT MAA prefers to use a four-letter abbreviation to stay consistent with the Major and Minor group names, and provide a more intuitive description for the status. Below is a list of common status categories:

A sheet file is synonymous with a single sheet or page of a plotted CAD drawing file. A sheet file is a selected view or portion of referenced model files within a border sheet. The addition of sheet-specific information (e.g., text, dimensions, and symbols) completes the construction of the document. Table 1D.1-4, Common Sheet File Layers, outlines layers that will be common in all sheet files in a set of construction drawings:

A model file contains the physical components or features that make up a building, facility, or site (e.g., columns, walls, windows, ductwork, piping, etc.). Both MDOT MAA and NCS layer names consist of adiscipline designator, a major category and minor categories. Once the discipline designator, major and minor categories have been determined, a final portion of the layer name indicating status may be added. This describes to the user what the disposition is of the entities on that layer, and helps to determine if that layer should or should not be shown on a particular drawing sheet.

MDOT MAA prefers to use a four-letter abbreviation for the status category to stay consistent with the Major and Minor group names, and provide a more intuitive description for the status. Below is a list of common status categories and their recommended properties:

*Equal Color = current color being used by the layer to which the status will be added

**Equal Color + (x) = add 1 or 2 to the current color number being used by the layer to which the status will be added

GENERAL INFORMATION
Discipline	Major	Minor1	Minor2	Status	Layer Description
A	ANNO	DIMS			Witness/extension lines, dimension terminators, dimension text
A	ANNO	KEYN			Reference keynotes with associated leaders
A	ANNO	NOTE			General notes and general remarks
A	ANNO	NPLT			Non-plotting graphic information
A	ANNO	PATT			Miscellaneous patterning and hatching
A	ANNO	REFR			Reference files
A	ANNO	SYMB			Miscellaneous symbols
A	ANNO	TEXT			Miscellaneous text and callouts with associated leaders
AREA INFORMATION
Discipline	Major	Minor1	Minor2	Status	Layer Description
A	AREA	LINE			Architectural area calculation boundary lines
A	AREA	OCCP			Occupant or employee names
A	AREA	PATT			Area cross hatching
BAGGAGE SYSTEM INFORMATION
Discipline	Major	Minor1	Minor2	Status	Layer Description
A	BAGS	CART			Cart/Tug
A	BAGS	CATW			Catwalk
A	BAGS	CLMD			Claim Device
A	BAGS	CONV			Baggage Conveyor
A	BAGS	CRBS			Curbside Baggage Conveyor
A	BAGS	CTRL			Control
A	BAGS	DIMS			Dimension
A	BAGS	DOOR			Doors
A	BAGS	ELEV			Elevation
A	BAGS	EQPM			Equipment
A	BAGS	ICNV			Inbound Baggage Conveyor
A	BAGS	IOSZ			Inbound Oversized Baggage Conveyor
A	BAGS	MATC			Match Lines
A	BAGS	MKUP			Make-Up Device
A	BAGS	NOTE			Notes
A	BAGS	OCNV			Outbound Baggage Conveyor
A	BAGS	OOSZ			Outbound Oversized Baggage Conveyor
A	BAGS	RAIL			Guardrail
A	BAGS	RWAY			Right-of-Way
A	BAGS	SCDR			Security Door
A	BAGS	SCNU			Screening Unit
A	BAGS	TCBC			Ticket Counter Baggage Conveyor
A	BAGS	TEMP			Temporary
A	BAGS	TTLB			Title Block
A	BAGS	TTRY			Tilt-Tray Baggage System
A	BAGS	VPRT			View Port Layer for Paper Space
A	BAGS	XFER			Transfer Baggage Conveyor
A	BAGS	XRAY			X-Ray Unit
CEILING INFORMATION
Discipline	Major	Minor1	Minor2	Status	Layer Description
A	CLNG	ACCS			Access panels
A	CLNG	CTLJ			Ceiling control joints
A	CLNG	ENCL			Column enclosures/fire protection
A	CLNG	GRID			Ceiling grid
A	CLNG	LEVL			Level Changes
A	CLNG	OPNG			Openings, ceiling/roof penetrations (see also A-FLOR-OVHD in Model File Type: Floor Plan)
A	CLNG	PATT			Ceiling patterns
A	CLNG	REFL			Reflective Ceiling
A	CLNG	SUSP			Suspended elements, ceiling mounted specialties (e.g., clocks, fans, etc.)
A	CLNG	TEES			Main tees
DETAIL INFORMATION
Discipline	Major	Minor1	Minor2	Status	Layer Description
A	DETL	GRPH			Graphics, gridlines, non-text items
A	DETL	INPD			Inch-pound-specific dimensions and notes
A	DETL	METR			Metric-specific dimensions and notes
A	DOOR	FULL			Full height (to ceiling) door: swing and leaf
A	DOOR	IDEN			Door number and symbol, hardware group, etc.
A	DOOR	PRHT			Partial height door: swing and leaf
A	DOOR	SERT			Security Door
A	DOOR	SYMB			Miscellaneous door symbols (e.g., overhead, bifold, pocket, etc.)
ELEVATIONS
Discipline	Major	Minor1	Minor2	Status	Layer Description
A	ELEV	CSWK			Wall-mounted casework
A	ELEV	FIXT			Miscellaneous fixtures
A	ELEV	FNSH			Finishes, woodwork, trim
A	ELEV	IDEN			Component identification numbers
A	ELEV	OTLN			Building outlines
A	ELEV	PATT			Textures and hatch patterns
A	ELEV	PFIX			Plumbing fixtures
A	ELEV	SIGN			Signage
EQUIPMENT
Discipline	Major	Minor1	Minor2	Status	Layer Description
A	EQPM	ACCS			Equipment access
A	EQPM	BELW			Equipment below Floor
A	EQPM	CLRN			Equipment clearance
A	EQPM	FIXD			Fixed equipment
A	EQPM	IDEN			Equipment identification numbers
A	EQPM	JETB			Aircraft Jet bridge
A	EQPM	MOVE			Moveable equipment
A	EQPM	NICN			Not in contract equipment
A	EQPM	OVHD			Overhead, ceiling mounted, or suspended equipment
FLOOR INFORMATION
Discipline	Major	Minor1	Minor2	Status	Layer Description
A	FLOR	CSWK			Casework (manufactured cabinets)
A	FLOR	ESCL			Escalators
A	FLOR	EVTR			Elevator cars and equipment
A	FLOR	EXPJ			Expansion and Seismic Joints
A	FLOR	FIXT			Floor mounted/Free standing miscellaneous fixtures
A	FLOR	FURN			Furniture Layers
A	FLOR	HRAL			Stair and balcony handrails, guard rails
A	FLOR	IDEN			Room name, space identification text
A	FLOR	LADD			Ladders
A	FLOR	LEVL			Level changes, shafts, ramps, pits, breaks in construction, and depressions
A	FLOR	MOVS			Moving sidewalks
A	FLOR	NUMB			Room/space identification number and symbol
A	FLOR	OTLN			Floor outline/perimeter/building footprint
A	FLOR	OTLN	RPRM		Room perimeter shape (Interior walls)
A	FLOR	OVHD			Overhead items (skylights, overhangs etc.)
A	FLOR	PATT			Paving, tile, carpet patterns
A	FLOR	RAIS			Access (raised) flooring
A	FLOR	SIGN			Signage
A	FLOR	SPCE			Interior space not delineated by walls
A	FLOR	SPCL			Architectural specialties (e.g., toilet room accessories, display cases)
A	FLOR	STRS			Stair risers/treads
A	FLOR	TPTN			Toilet partitions
A	FLOR	WDWK			Architectural woodwork (field built cabinets and counters)
WINDOWS
Discipline	Major	Minor1	Minor2	Status	Layer Description
A	GLAZ	FULL			Full height glazed walls and partitions (see A-WALL-CWMG for curtain walls)
A	GLAZ	IDEN			Window number and symbol
A	GLAZ	PRHT			Windows and partial height glazed partitions
A	GLAZ	SILL			Window sills
LIGHTING
Discipline	Major	Minor1	Minor2	Status	Layer Description
A	LITE	CLNG			Specialty ceiling lights not shown on Electrical Lighting Plan
PROPERTY INFORMATION
Discipline	Major	Minor1	Minor2	Status	Layer Description
A	PROP	LEAS			Lease line (interior)
ROOFING INFORMATION
Discipline	Major	Minor1	Minor2	Status	Layer Description
A	ROOF	CRKT			Crickets flow arrows flow info
A	ROOF	EXPJ			Expansion joints
A	ROOF	GUTR			Roof internal gutters
A	ROOF	HRAL			Stair handrails, nosings, guard rails
A	ROOF	LEVL			Level changes
A	ROOF	OPNX			Roof Open Below ('X' line symbol)
A	ROOF	OTLN			Roof perimeter/edge, roof geometry
A	ROOF	PATT			Roof surface patterns, hatching
A	ROOF	RFDR			Roof drains
A	ROOF	SPCL			Roof specialties, accessories, access hatches, dormers
A	ROOF	STRS			Stair risers/treads, ladders
A	ROOF	WALK			Roof walkways
A	ROOF	WALL			Parapet walls and wall caps
SECTIONS
Discipline	Major	Minor1	Minor2	Status	Layer Description
A	SECT	IDEN			Component identification numbers
A	SECT	MBND			Material beyond section cut
A	SECT	MCUT			Material cut by section
A	SECT	PATT			Textures and hatch patterns
WALLS
Discipline	Major	Minor1	Minor2	Status	Layer Description
A	WALL	CAVI			Cavity wall lines
A	WALL	CNTR			Wall centerlines
A	WALL	CWMG			Curtain wall mullions and glass
A	WALL	FIRE			Fire wall designators (patterning)
A	WALL	FULL	EXTR		Exterior full height walls
A	WALL	FULL	INTR		Interior full height walls
A	WALL	HEAD			Door and window headers (appear on Reflected Ceiling Plan)
A	WALL	IDEN			Wall identification/type text or tags
A	WALL	JAMB			Door and window jambs (do not appear on Reflected Ceiling Plan)
A	WALL	MOVE			Moveable walls/partitions
A	WALL	PATT			Wall insulation, hatching, and fill
A	WALL	PRHT			Partial height walls (do not appear on Reflected Ceiling Plan)
A	WALL	SPCL			Wall-hung/attached specialties (e.g., fixtures, grab bars (incl. handicap), telephone booths)

Discipline	Major	Minor1	Description
GENERAL INFORMATION
B	ANNO	DIMS	Witness/extension lines, dimension terminators, dimension text
B	ANNO	KEYN	Reference keynotes with associated leaders
B	ANNO	NOTE	General notes and general remarks
B	ANNO	NPLT	Non-plotting graphic information
B	ANNO	PATT	Miscellaneous patterning and hatching
B	ANNO	REFR	Reference files (AutoCAD users only, see Chapter 4)
B	ANNO	SYMB	Miscellaneous symbols
B	ANNO	TEXT	Miscellaneous text and callouts with associated leaders
GEOPHYSICAL BORINGS
B	BORE	ELEV	Boring elevations
B	BORE	FDTA	Field data
B	BORE	HOLE	Bore/perc hole number
B	BORE	IDEN	Component identification numbers
B	BORE	LDTA	Laboratory data
B	BORE	PATT	Soil/rock patterns

AIRFIELD
Discipline	Major	Minor1	Minor2	Status	Description
C	AFLD	AHOA			Airfield: Air Operations Area
C	AFLD	AREA	O		Airfield: Air Operations Area
C	AFLD	ARWY			Airfield: Airway
C	AFLD	DSRF	BRLN		Airfield: Building Restriction Line
C	AFLD	DSRF	KEYH		Airfield: Key holes
C	AFLD	DSRF	NMOV		Airfield: Aircraft Non-Movement Area
C	AFLD	DSRF	OBFA		Airfield: Object Free Area
C	AFLD	DSRF	OBFA		Object Free Area
C	AFLD	DSRF	OFZ_		Object Free Zone
C	AFLD	DSRF	OFZN		Airfield: Object Free Zone
C	AFLD	DSRF	POFA		Airfield: Precision Object Free Area
C	AFLD	FAAR			Airfield: FAA Region
C	AFLD	FREQ			Airfield: Frequency Area
C	AFLD	GLYC	ANNO		Airfield: Glycol bubble callout
C	AFLD	GLYC	MHOL		Airfield: Glycol manholes
C	AFLD	GLYC	PIPE		Airfield: Glycol pipes
C	AFLD	LNDM			Airfield: Landmark segment
C	AFLD	NAID	COMM		Airfield: Communications airfield navigational aides
C	AFLD	NAID	CRIT		Airfield: Airfield Navigational Aid - Critical Area
C	AFLD	NAID	GPS_		Airfield: GPS airfield navigational aides
C	AFLD	NAID	ILS_		Airfield: Airfield Instrument Landing System
C	AFLD	NAID	MCWV		Airfield: Microwave airfield navigational aides
C	AFLD	NAID	OTHR		Airfield: Other airfield navigational aides
C	AFLD	NAID	RADI		Airfield: Radio airfield navigational aides
C	AFLD	NAID	RADR		Airfield: Radar airfield navigational aides
C	AFLD	NAID	RMTE		Airfield: Remote airfield navigational aides
C	AFLD	NAID	SITE		Airfield: Airfield Navigational Aid - Site
C	AFLD	NAID	SYST		Airfield: NAVAID system
C	AFLD	NAID	WTHR		Airfield: Weather airfield navigational aides
C	AFLD	OBST	LINE		Airfield: Airspace obstructions - Line
C	AFLD	OBST	NODE		Airfield: Airspace obstructions - Point
C	AFLD	OBST	POLY		Airfield: Airspace obstructions - Polygon
C	AFLD	OTHR			Airfield: Other airspace surfaces
C	AFLD	PART	APRC		Airfield: FAR Part 77 Approach Surface
C	AFLD	PART	CONL		Airfield: FAR Part 77 Conical Surface
C	AFLD	PART	HORZ		Airfield: FAR Part 77 Horizontal Surface
C	AFLD	PART	PRIM		Airfield: FAR Part 77 Primary Surface
C	AFLD	PART	TRNS		Airfield: FAR Part 77 Transitional Surface
C	AFLD	PROP			Airfield: Airport property
C	AFLD	PVMT			Airfield: Pavement section
C	AFLD	SECR	RSTR		Airfield: Military restricted access boundary
C	AFLD	SECR	SECA		Airfield: Airfield security area
C	AFLD	SECR	SIDA		Airfield: Security Identification Display Area
C	AFLD	SECR	STER		Airfield: Airfield sterile area
C	AFLD	SECT	AREA		Airfield Movement Security Area
C	AFLD	TERP			Airfield: TERPS surfaces
C	AFLD	TRAF	IDEN		Airfield Traffic Area: Annotation
C	AFLD	TRAF	TYPA		Airfield Traffic Area: Type A traffic area
C	AFLD	TRAF	TYPB		Airfield Traffic Area: Type B traffic area
C	AFLD	TRAF	TYPC		Airfield Traffic Area: Type C traffic area
C	AFLD	TRAK	LINE		Airfield: Flight Track Line
C	AFLD	TRAK	PNTS		Airfield: Flight Track Point
AIRSPACE
Discipline	Major	Minor1	Minor2	Status	Description
C	AIRS	ISOC			Airfield: Approach surface isoclines
C	AIRS	LNDM			Airfield: Landmark segment
C	AIRS	OBST			Airfield: Airfield obstruction
C	AIRS	OBST	LINE		Airfield: Airspace obstructions - Line
C	AIRS	OBST	NODE		Airfield: Airspace obstructions - Point
C	AIRS	OBST	POLY		Airfield: Airspace obstructions - Polygon
C	AIRS	OTHR			Airfield: Other airspace surfaces
C	AIRS	PART	APRC		Airfield: FAR Part 77 Approach Surface
C	AIRS	PART	CONL		Airfield: FAR Part 77 Conical Surface
C	AIRS	PART	HORZ		Airfield: FAR Part 77 Horizontal Surface
C	AIRS	PART	PRIM		Airfield: FAR Part 77 Primary Surface
C	AIRS	PART	TRNS		Airfield: FAR Part 77 Transitional Surface
C	AIRS	TERP			Airfield: TERPS surfaces
ALIGNMENTS
Discipline	Major	Minor1	Minor2	Status	Description
C	ALGN	ANNO	AREA		Alignments: New Annotation Areas
C	ALGN	ASSM			Alignments: Civil 3D Assembly
C	ALGN	ASSM	BLIN		Alignments: Civil 3D Assembly Baseline
C	ALGN	ASSM	OFFS		Alignments: Civil 3D Assembly Offsets
C	ALGN	ASSM	TEXT		Alignments: Civil 3D Assembly Annotation
C	ALGN	BRNG			Alignments: Bearings
C	ALGN	CORR			Alignments: Civil 3D Corridor
C	ALGN	CORR	OTLN		Alignments: Civil 3D Corridor Boundary
C	ALGN	DATA			Alignments: Coordinates and Curve Data
C	ALGN	LINE			Alignments: Lines
C	ALGN	PROF			Alignments: Design profile
C	ALGN	PROF	LINE	EXTN	Alignments: Profile Extension Line
C	ALGN	PROF	TEXT		Alignments: Profile Text
C	ALGN	SECT	IDEN		Alignments: Section Sampling Station
C	ALGN	STAT			Alignments: Stationing and tick marks
C	ALGN	SYMB			Alignments: Alignment symbols
GENERAL INFORMATION
Discipline	Major	Minor1	Minor2	Status	Description
C	ANNO	ANOD			General Annotation: Anode
C	ANNO	ANOD	TEXT		General Annotation: Anode Text
C	ANNO	DIMS			General Annotation: Witness/extension lines, dimension terminators, dimension text
C	ANNO	KEYN			General Annotation: Reference keynotes with associated leaders
C	ANNO	NOTE			General Annotation: General notes and remarks
C	ANNO	NPLT			General Annotation: Non-plotting graphic information
C	ANNO	PATT			General Annotation: Miscellaneous patterning and hatching
C	ANNO	REFR			General Annotation: Reference files (AutoCAD users only, see Chapter 4)
C	ANNO	SYMB			General Annotation: Miscellaneous symbols
C	ANNO	TABL			General Annotation: Tables
C	ANNO	TABL	IDEN		General Annotation: Table Identification
C	ANNO	TABL	PATT		General Annotation: Table Hatching
C	ANNO	TABL	TEXT		General Annotation: Table Annotation & Data
C	ANNO	TEXT			General Annotation: Miscellaneous text and callouts with associated leaders
APRONS
Discipline	Major	Minor1	Minor2	Status	Description
C	APRN	ACPK			Aprons: Aircraft gate/stand parking area
C	APRN	CNTR			Aprons: Centerlines
C	APRN	CNTR	IDEN		Aprons: Centerline annotation
C	APRN	DEIC			Aprons: Aircraft Deicing Area
C	APRN	GRND			Aprons: Grounding points
C	APRN	HOLD			Aprons: Holding position markings
C	APRN	IDEN			Aprons: Annotation
C	APRN	JNTS			Aprons: Apron joints
C	APRN	MOOR			Aprons: Mooring points
C	APRN	MRKG			Aprons: Apron markings
C	APRN	NMOV			Aprons: Aircraft non-movement area
C	APRN	OTLN			Aprons: Airfield apron
C	APRN	SERT			Aprons: Security zone markings
C	APRN	SHLD	MRKG		Aprons: Shoulder markings
C	APRN	SIGN			Aprons: Airfield signs on the apron
C	AREA	CURB			Area: New Curb Areas
C	AREA	SIGN			Area: New Signage Area
BUILDINGS AND PRIMARY STRUCTURES
Discipline	Major	Minor1	Minor2	Status	Description
C	BLDG	IDEN			Buildings: Building and other structure annotation
C	BLDG	OTLN			Buildings: Buildings and other structures
C	BLDG	OVHD			Buildings: Building overhang
C	BLDG	PATT			Buildings: Building hatching and patterns
BORROW AREAS
Discipline	Major	Minor1	Minor2	Status	Description
C	BORW	IDEN			Borrow Areas: Borrow/Spoil area annotation
C	BORW	LINE			Borrow Areas: Borrow/Spoil area
CHANNELS
Discipline	Major	Minor1	Minor2	Status	Description
C	CHAN	CNTR			Channels: Centerline and survey report lines
C	CHAN	CNTR	IDEN		Channels: Centerline and survey report lines - annotation
C	CHAN	DACL			Channels: De-authorized channel limits, anchorages, etc.
C	CHAN	DACL	IDEN		Channels: De-authorized channel limits, anchorages, etc. - annotation
C	CHAN	IDEN			Channels: Limits, anchorages, turning basins, disposal areas, etc. - annotation
C	CHAN	LIMT			Channels: Limits, anchorages, turning basins, disposal areas, etc.
C	CHAN	NAID			Channels: Navigation aids and text
C	CHAN	TURN			Channels: Turning points
DETAIL INFORMATION
Discipline	Major	Minor1	Minor2	Status	Description
C	DETL	ANNO	IDEN		Details: Identification Annotation
C	DETL	ANNO	TEXT		Details: Annotation
C	DETL	CONC			Details: Concrete Elements
C	DETL	COVR			Details: Covers and Fittings
C	DETL	ERTH			Details: Earth
C	DETL	FENC			Details: Fencing
C	DETL	FENC	SERT		Details: Security Fencing
C	DETL	FILL			Details: Fill and Hatching
C	DETL	FSTN			Details: Fasteners
C	DETL	GENF			Details: General features (miscellaneous items)
C	DETL	GRPH			Details: Graphics, gridlines, non-text items
C	DETL	INPD			Details: Inch-pound-specific dimensions and notes
C	DETL	METR			Details :Metric-specific dimensions and notes
C	DETL	PIPE			Details: Piping
C	DETL	PVMT			Details: Pavements
C	DETL	SPCL			Details: Special features
C	DETL	STRC			Details: Structural metal
C	DETL	TANK			Details: Tanks
C	DETL	VALV			Details: Valves and fittings
DOMESTIC WATER
Discipline	Major	Minor1	Minor2	Status	Description
C	DOMW	DEVC	ANOD		Domestic Water: Anode
C	DOMW	DEVC	FIRE		Domestic Water: Fire connection pint other than hydrants
C	DOMW	DEVC	INTK		Domestic Water: Intake point
C	DOMW	DEVC	PIGL		Domestic Water: Pig launch point
C	DOMW	DEVC	PIGL		Water: Water Pig Launch Point
C	DOMW	DEVC	PUMP		Domestic Water: Pump
C	DOMW	DEVC	RECT		Domestic Water: Rectifier
C	DOMW	DEVC	REGL		Domestic Water: Regulator, reducer
C	DOMW	DEVC	SMPL		Domestic Water: Sample location
C	DOMW	DEVC	TEST		Domestic Water: Anode test station
C	DOMW	DEVC	TRET		Domestic Water: Treatment unit
C	DOMW	DEVC			Domestic Water: Connectors, faucets, reducers, regulators, vents, intake points, tanks, taps, backflow presenters, and valves
C	DOMW	FIRE			Domestic Water: Fire lines
C	DOMW	FTTG			Domestic Water: Caps, cleanouts, crosses, and tees
C	DOMW	HYDR			Domestic Water: Hydrants
C	DOMW	IDEN			Domestic Water: Identifier tags, symbol modifier, and text
C	DOMW	JBOX			Domestic Water: A below grade box or small vault (usually concrete, brick, or cast iron) with above grade access where pipes intersect. Manhole also houses associated fittings, valves, meters, etc.
C	DOMW	JBOX			Water: Water Junction box
C	DOMW	METR			Domestic Water: Meters
C	DOMW	NHYD			Domestic Water: Non-potable hydrants/flushing hydrants
C	DOMW	NPW~			Domestic Water: Non-potable water piping
C	DOMW	PIPE	A		Domestic Water: Abandoned piping
C	DOMW	PIPE	A		Water: Abandoned Water Line
C	DOMW	PIPE			Domestic Water: Main domestic water piping
C	DOMW	PITS	IDEN		Domestic Water: Identifier tags, symbol modifier, and text
C	DOMW	PLNT			Domestic Water: A water treatment plant and all appurtenant equipment, buildings, and facilities relating to water treatment
C	DOMW	PUMP			Domestic Water: Booster pump stations
C	DOMW	REDC			Domestic Water: Pressure reducing stations
C	DOMW	REDC			Domestic Water: Water Pressure Reducing Station
C	DOMW	RSVR	IDEN		Domestic Water: Identifier tags, symbol modifier, and text
C	DOMW	RSVR			Domestic Water: Reservoirs
C	DOMW	SERV			Domestic Water: Domestic water service piping
C	DOMW	SIGN			Domestic Water: Surface markers/signs
C	DOMW	SIGN			Surface markers/signs
C	DOMW	SITE			Domestic Water: A water utility company or organization’s certificated area of jurisdiction or responsibility as approved by a federal, state, or local utility regulatory authority
C	DOMW	SRCE			Domestic Water: The point from which water is supplied for processing and distribution
C	DOMW	SRCE			Domestic Water: Water Source Site
C	DOMW	STNS	IDEN		Domestic Water: Identifier tags, symbol modifier, and text
C	DOMW	TANK			Domestic Water: Water storage tanks
C	DOMW	VALV			Domestic Water: Valve pits/vaults
C	DOMW	VENT			Domestic Water: Vent pits
C	DOMW	WELL			Domestic Water: Water well houses
DREDGING
Discipline	Major	Minor1	Minor2	Status	Description
C	DRED	IDEN			Dredging: Dredging annotation
C	DRED	LIMT			Dredging: Dredge limit lines
C	DRED	OHWM			Dredging: Ordinary high water marks
DITCHES
Discipline	Major	Minor1	Minor2	Status	Description
C	DTCH	BOTM			Ditches: Bottom of ditch
C	DTCH	CNTR			Ditches: Centerline of ditch
C	DTCH	EWAT			Ditches: Edge of water
C	DTCH	IDEN			Ditches: Ditch annotation
C	DTCH	TOP~			Ditches: Top of ditch
ELEVATIONS
Discipline	Major	Minor1	Minor2	Status	Description
C	ELEV	FIXT			Elevations: Miscellaneous fixtures
C	ELEV	IDEN			Elevations: Component identification numbers
C	ELEV	OTLN			Elevations: Building outlines
C	ELEV	PATT			Elevations: Textures and hatch patterns
C	ELEV	SIGN			Elevations: Signage
EROSION AND SEDIMENTATION CONTROL
Discipline	Major	Minor1	Minor2	Status	Description
C	EROS	CIPR			Erosion and Sedimentation Control: Culvert inlet protection
C	EROS	CNTE			Erosion and Sedimentation Control: Construction entrance
C	EROS	DDIV	IDEN		Erosion and Sedimentation Control: Drainage divide identification
C	EROS	DDIV			Erosion and Sedimentation Control: Drainage divides
C	EROS	DVDK			Erosion and Sedimentation Control: Diversion dike
C	EROS	IDEN			Erosion and Sedimentation Control: Annotation
C	EROS	INPR			Erosion and Sedimentation Control: Inlet protection
C	EROS	LIMI			Erosion and Sedimentation Control: Limit of Division
C	EROS	SILT	FENC		Erosion and Sedimentation Control: Silt fence
C	EROS	SILT	TRAP		Erosion and Sedimentation Control: Silt trap
C	EROS	SSLT	FENC		Erosion and Sedimentation Control: Super silt fence
C	EROS				Erosion and Sedimentation Control: General
LIQUID FUEL
Discipline	Major	Minor1	Minor2	Status	Description
C	FUEL	DEFL			Liquid Fuel: Defueling piping
C	FUEL	DEVC	AIRE		Liquid Fuel: Air eliminator
C	FUEL	DEVC	ANOD		Liquid Fuel: Anode
C	FUEL	DEVC	FILT		Liquid Fuel: Filter strainer point
C	FUEL	DEVC	OILW		Liquid Fuel: Oil water separator
C	FUEL	DEVC	PUMP		Liquid Fuel: Pump
C	FUEL	DEVC	RECT		Liquid Fuel: Rectifier
C	FUEL	DEVC	REDC		Liquid Fuel: Reducer
C	FUEL	DEVC	SRCE		Liquid Fuel: Source point
C	FUEL	DEVC	TEST		Liquid Fuel: Anode test station
C	FUEL	DEVC	VALV		Liquid Fuel: Valve
C	FUEL	DEVC			Liquid Fuel: Air eliminators, filter strainers, hydrant fill points, line vents, markers,
C	FUEL	FARM			Liquid Fuel: Fuel farm site
C	FUEL	FLOW			Liquid Fuel: Flow direction arrows
C	FUEL	FTTG			Liquid Fuel: Caps, crosses, and tees
C	FUEL	HYDR			Liquid Fuel: Hydrant control pits
C	FUEL	IDEN			Liquid Fuel: Identifier tags, symbol modifier, and text
C	FUEL	JBOX			Liquid Fuel: Junction boxes, manholes, handholes, test boxes
C	FUEL	METR			Liquid Fuel: Meters
C	FUEL	PIPE	A		Liquid Fuel: Abandoned piping
C	FUEL	PIPE	SEGM		Liquid Fuel: Pipeline segment line
C	FUEL	PIPE			Liquid Fuel: Main fuel piping
C	FUEL	PIPE			Liquid Fuel: Pipe line
C	FUEL	PITS	IDEN		Liquid Fuel: Identifier tags, symbol modifier, and text
C	FUEL	PUMP			Liquid Fuel: Booster pump stations
C	FUEL	REFN			Liquid Fuel: Refinery site
C	FUEL	SERV			Liquid Fuel: Service piping
C	FUEL	STNS	IDEN		Liquid Fuel: Identifier tags, symbol modifier, and text
C	FUEL	TANK			Liquid Fuel: Fuel tanks
C	FUEL	TRCH			Liquid Fuel: Fuel line trench
C	FUEL	VALV			Liquid Fuel: Valve pits
C	FUEL	VENT			Liquid Fuel: Vent pits
GLYCOL
Discipline	Major	Minor1	Minor2	Status	Description
C	GLYC	COUT			Glycol: Deicing Line Clean Out
C	GLYC	CULV	CEND		Glycol: Deicing Culvert End
C	GLYC	CULV	CNTR		Glycol: Deicing Culvert Centerline
C	GLYC	DBAS			Glycol: Deicing Drainage Basin
C	GLYC	DDIV			Glycol: Deicing Drainage Divide
C	GLYC	DISC			Glycol: Deicing Discharge Point
C	GLYC	FLOW			Glycol: Deicing Flow Control Point
C	GLYC	FTTG			Glycol: Deicing Fitting
C	GLYC	INLT			Glycol: Deicing Inlet
C	GLYC	JBOX			Glycol: Deicing Junction
C	GLYC	LIFT			Glycol: Deicing Lift Station
C	GLYC	LINE	RETN		Glycol: Deicing Return Line
C	GLYC	LINE	SPLY		Glycol: Deicing Supply Line
C	GLYC	LINE			Glycol: Deicing Line
C	GLYC	MARK			Glycol: Deicing Marker
C	GLYC	MHOL			Glycol: Deicing Manhole
C	GLYC	PUMP			Glycol: Deicing Pump
C	GLYC	RESV			Glycol: Deicing Reservoir
C	GLYC	STAT			Glycol: Deicing Pump Station
C	GLYC	TANK			Glycol: Deicing Tank
C	GLYC	VALT			Glycol: Deicing Vault
C	GLYC	VALV			Glycol: Deicing Valve
GRADE LINEWORK
Discipline	Major	Minor1	Minor2	Status	Description
C	GRAD	CUTS			Grade Linework: Cut Material
C	GRAD	E			Grade Linework: Existing grade, ground line
C	GRAD	FILL			Grade Linework: Fill Material
C	GRAD	FNSH			Grade Linework: Finished grade
C	GRAD	MASS	FREE		Grade Linework: Free Haul Area
C	GRAD	MASS	IDEN		Grade Linework: Mass Haul Identification
C	GRAD	MASS	LINE		Grade Linework: Mass Haul Linework
C	GRAD	MASS	MAJR		Grade Linework: Mass Haul Major Grids
C	GRAD	MASS	MINR		Grade Linework: Mass Haul Minor Grids
C	GRAD	MASS	OTLN		Grade Linework: Mass Haul Outline
C	GRAD	MASS	OVER		Grade Linework: Overhaul Area
C	GRAD	MASS	TEXT		Grade Linework: Mass Haul Annotation
C	GRAD	TEXT			Grade Linework: Annotation
C	GRAD				Grade Linework: Grading
GRID LINES
Discipline	Major	Minor1	Minor2	Status	Description
C	GRID	FRAM			Grid Lines: Frame (bounding frame of an area referenced by a grid)
C	GRID	MAJR			Grid Lines: Major grid lines
C	GRID	MINR			Grid Lines: Minor grid lines
C	GRID	TEXT			Grid Lines: Border text, annotation
HELIPORTS
Discipline	Major	Minor1	Minor2	Status	Description
C	HELI	BLST			Heliports: Helipad blast pad and stopway markings
C	HELI	CNTR	MRKG		Heliports: Centerline markings
C	HELI	CNTR			Heliports: Centerline
C	HELI	DIST			Heliports: Fixed distance markings
C	HELI	DSPL			Heliports: Displaced threshold markings
C	HELI	DSRF			Heliports: Helipad design surface
C	HELI	FATO			Heliports: Helipad FATO - Final Approach and Takeoff
C	HELI	IDEN			Heliports: Heliport numbers and letters
C	HELI	SHLD			Heliports: Shoulder
C	HELI	SIDE			Heliports: Side stripes
C	HELI	TDZM			Heliports: Touchdown zone markers
C	HELI	THRS			Heliports: Threshold markers
C	HELI	TLOF			Heliports: Helipad take off and landing area
INDUSTRIAL WASTE WATER
Discipline	Major	Minor1	Minor2	Status	Description
C	IW~~	DEVC	ANOD		Industrial Waste Water: Anode
C	IW~~	DEVC	DISC		Industrial Waste Water: Discharge point
C	IW~~	DEVC	FTTG		Industrial Waste Water: Waste fitting
C	IW~~	DEVC	GRIT		Industrial Waste Water: Grit chamber
C	IW~~	DEVC	INLT		Industrial Waste Water: Inlet
C	IW~~	DEVC	NEUT		Industrial Waste Water: Neutralizer
C	IW~~	DEVC	OILW		Industrial Waste Water: Oil water separator
C	IW~~	DEVC	PUMP		Industrial Waste Water: Pump
C	IW~~	DEVC	RECT		Industrial Waste Water: Rectifier
C	IW~~	DEVC	TEST		Industrial Waste Water: Anode test station
C	IW~~	DEVC			Industrial Waste Water: Grit chambers, meters, flumes, neutralizers, oil/water separators, ejectors, tanks, and valves
C	IW~~	FLOW			Industrial Waste Water: Flow direction arrows
C	IW~~	FTTG			Industrial Waste Water: Caps and cleanouts
C	IW~~	HEAD	LINE		Industrial Waste Water: Headwall line
C	IW~~	HEAD	NODE		Industrial Waste Water: Headwall point
C	IW~~	IDEN			Industrial Waste Water: Identifier tags, symbol modifier, and text
C	IW~~	JBOX			Industrial Waste Water: Junction boxes and manholes
C	IW~~	LAGN			Industrial Waste Water: Lagoons
C	IW~~	LIFT			Industrial Waste Water: Lift stations
C	IW~~	METR			Industrial Waste Water: Meters
C	IW~~	PIPE	A		Industrial Waste Water: Abandoned piping
C	IW~~	PIPE			Industrial Waste Water: Main industrial waste water piping
C	IW~~	PLNT			Industrial Waste Water: Treatment plants
C	IW~~	RSVR	IDEN		Industrial Waste Water: Identifier tags, symbol modifier, and text
C	IW~~	SERV			Industrial Waste Water: Industrial waste water service piping
C	IW~~	SIGN			Industrial Waste Water: Surface markers/signs
C	IW~~	STNS	IDEN		Industrial Waste Water: Identifier tags, symbol modifier, and text
JOINTS
Discipline	Major	Minor1	Minor2	Status	Description
C	JNTS	CNTJ	LONG		Joints: Construction joints - longitudinal
C	JNTS	CNTJ	TRAV		Joints: Construction joints - transverse
C	JNTS	CNTT	LONG		Joints: Contraction joints - longitudinal
C	JNTS	CNTT	TRAV		Joints: Contraction joints - transverse
C	JNTS	EDGE			Joints: Thickened edges
C	JNTS	EXPJ			Joints: Expansion joints
C	JNTS	IDEN			Joints: Joint annotation
MARKING
Discipline	Major	Minor1	Minor2	Status	Description
C	MRKG	AREA			Marking: New Marking Area
MAINTENANCE OF TRAFFIC
Discipline	Major	Minor1	Minor2	Status	Description
C	MTRF	PHS1			Maintance of Traffic: Phase 1
C	MTRF	PHS2			Maintance of Traffic: Phase 2
C	MTRF	PHS3			Maintance of Traffic: Phase 3
C	MTRF	PHS4			Maintance of Traffic: Phase 4
C	MTRF	PHS5			Maintance of Traffic: Phase 5
NATURAL GAS
Discipline	Major	Minor1	Minor2	Status	Description
C	NGAS	DEVC	ANOD		Natural Gas: Anode
C	NGAS	DEVC	FILL		Natural Gas: Fill point
C	NGAS	DEVC	IDEN		Natural Gas: Identifier tags, symbol modifier, and text
C	NGAS	DEVC	LITE		Natural Gas: Light
C	NGAS	DEVC	PUMP		Natural Gas: Pump
C	NGAS	DEVC	RECT		Natural Gas: Rectifier
C	NGAS	DEVC	SRCE		Natural Gas: Source point
C	NGAS	DEVC	TEST		Natural Gas: Anode test station
C	NGAS	DEVC			Natural Gas: Hydrant fill points, lights, vents, markers, rectifiers, reducers, regulators,
C	NGAS	FLOW			Natural Gas: Flow direction arrows
C	NGAS	FTTG			Natural Gas: Caps, crosses, and tees
C	NGAS	IDEN			Natural Gas: Identifier tags, symbol modifier, and text
C	NGAS	METR			Natural Gas: Meters
C	NGAS	PIPE	A		Natural Gas: Abandoned piping
C	NGAS	PIPE			Natural Gas: Main natural gas piping
C	NGAS	PITS	IDEN		Natural Gas: Identifier tags, symbol modifier, and text
C	NGAS	PUMP			Natural Gas: Compressor stations
C	NGAS	REDC			Natural Gas: Reducing stations
C	NGAS	SERV			Natural Gas: Service piping
C	NGAS	SIGN			Natural Gas: Surface markers/signs
C	NGAS	STNS	IDEN		Natural Gas: Identifier tags, symbol modifier, and text
C	NGAS	TANK			Natural Gas: Gas Tank
C	NGAS	VALV			Natural Gas: Valve pits/boxes
C	NGAS	VENT			Natural Gas: Vent pits
OVERRUN AREAS
Discipline	Major	Minor1	Minor2	Status	Description
C	OVRN	CNTR	IDEN		Overrun Areas: Centerline annotation
C	OVRN	CNTR			Overrun Areas: Centerlines
C	OVRN	IDEN			Overrun Areas: Airfield overrun area - annotation
C	OVRN	JNTS			Overrun Areas: Airfield overrun joints
C	OVRN	OTLN			Overrun Areas: Airfield overrun area - outlines
C	OVRN	SHLD			Overrun Areas: Shoulder markings
PADS (arm / disarm / calibration, etc.)
Discipline	Major	Minor1	Minor2	Status	Description
C	PADS	CNTR	IDEN		Pads: Centerline annotation
C	PADS	CNTR			Pads: Centerlines
C	PADS	IDEN			Pads: Annotation
C	PADS	OTLN			Pads: Outlines
C	PADS	SHLD			Pads: Shoulders with annotation
PARKING LOTS
Discipline	Major	Minor1	Minor2	Status	Description
C	PRKG	CARS			Parking Lots: Graphic illustration of cars
C	PRKG	CNTR	IDEN		Parking Lots: Centerline annotation
C	PRKG	CNTR			Parking Lots: Centerlines
C	PRKG	CURB			Parking Lots: Curbs and gutters
C	PRKG	DRAN			Parking Lots: Parking lot drainage slope indications
C	PRKG	EQPM			Parking Lots: Parking Equipment (I.e. booths, gates, etc.)
C	PRKG	FIXT			Parking Lots: Fixtures (e.g., wheel stops, parking meters)
C	PRKG	IDEN			Parking Lots: Minor road, and curb annotation
C	PRKG	ISLD			Parking Lots: Parking islands
C	PRKG	MRKG			Parking Lots: Striping, handicapped symbols, pavement markings
C	PRKG	OTLN			Parking Lots: Lot outline
C	PRKG	SBMP			Parking Lots: Speed bumps in parking areas
C	PRKG	SIGN			Parking Lots: Lot signage
PROFILES
Discipline	Major	Minor1	Minor2	Status	Description
C	PROF	CUTS	IDEN		Profiles: Existing grade and grading cuts - annotation
C	PROF	DATA			Profiles: Alignment coordinates and curve data
C	PROF	E			Profiles: Existing Grade
C	PROF	FILL			Profiles: New work, grading fills
C	PROF	FNSH			Profiles: Finished Grade
C	PROF	GRID	GEOM		Profiles: Geometry Point Grid Lines
C	PROF	GRID	MAJR		Profiles: Major Grid Lines
C	PROF	GRID	MINR		Profiles: Minor Grid Lines
C	PROF	IDEN			Profiles: Identification Labels
C	PROF	INLT			Profiles: Curb and surface inlets, catch basins
C	PROF	LINE	EXTN	E	Profiles: Existing Grade Extension Lines
C	PROF	MHOL			Profiles: Manholes
C	PROF	OTLN			Profiles: Grid Outline
C	PROF	PIPE			Profiles: Piping
C	PROF	PROJ			Profiles: Projected Objects
C	PROF	ROAD			Profiles: Roads
C	PROF	SSWR			Profiles: Sanitary Sewer
C	PROF	STAT			Profiles: Stationing and tick marks
C	PROF	STRM			Profiles: Storm Sewer
C	PROF	TEXT	E		Profiles: Existing Grade Text
C	PROF	TEXT			Profiles: Text Annotation
PROPERTY
Discipline	Major	Minor1	Minor2	Status	Description
C	PROP	BRNG			Property: Bearings and distance labels
C	PROP	CONS			Property: Construction limits/controls, staging area
C	PROP	ESMT			Property: Easements
C	PROP	IDEN			Property: Identification Annotation
C	PROP	LEAS			Property: Lease line (exterior / ground lease)
C	PROP	LINE			Property: Line
C	PROP	PROP			Cadastral: Airport Boundary
C	PROP	RWAY			Property: Right of ways
C	PROP	TEXT			Property: General Annotation
PAVEMENTS
Discipline	Major	Minor1	Minor2	Status	Description
C	PVMT	AREA	E		Pavements: Existing Pavement Area
C	PVMT	AREA			Pavements: New Pavement Area
C	PVMT	ASPH			Pavements: Asphalt Pattern
C	PVMT	CONC			Pavements: Concrete Pattern
C	PVMT	GROV			Pavements: Pavement Grooving
C	PVMT	GRVL			Pavements: Gravel Pattern
C	PVMT	IDEN			Pavements: Road, parking lot, railroad, airfield pavement identification annotation
C	PVMT	MRKG	TEXT		Pavements: Road, parking lot, railroad, airfield pavement text annotation
C	PVMT	MRKG	WHIT		Pavements: Roadway markings (white)
C	PVMT	MRKG	YELO		Pavements: Roadway markings (yellow)
C	PVMT	MRKG			Pavements: Pavement markings
C	PVMT	PATT			Pavements: Joint patterns, text and dimensions
C	PVMT	REPR			Pavements: Pavement Repair
C	PVMT	ROAD			Pavements: Roads, parking lots, railroads, airfield pavements
C	PVMT	SBMP			Pavements: Speed bumps on roadways
C	PVMT	SIGN			Pavements: Other signs
C	PVMT	TEXT			Pavements: Annotation
RAILROADS
Discipline	Major	Minor1	Minor2	Status	Description
C	RAIL	BRDG	CNTR		Railroads: Bridge Centerline
C	RAIL	BRDG			Railroads: Bridge area
C	RAIL	CNTR	IDEN		Railroads: Centerline annotation
C	RAIL	CNTR			Railroads: Centerlines
C	RAIL	EQPM			Railroads: Equipment (e.g., gates, signals)
C	RAIL	IDEN			Railroads: Annotation
C	RAIL	TRAK			Railroads: Track
C	RAIL	YARD			Railroads: Yard
ROADS, STREETS, HIGHWAYS
Discipline	Major	Minor1	Minor2	Status	Description
C	ROAD	ASPH			Roadways: Asphalt surface outline
C	ROAD	AUTO			Roadways: AutoTURN
C	ROAD	CHAN			Roadways: Channelizing Devices
C	ROAD	CNTR	IDEN		Roadways: Centerline annotation
C	ROAD	CNTR			Roadways: Centerlines
C	ROAD	CONC			Roadways: Concrete surface outline
C	ROAD	CORR	PATT		Roadways: Civil 3D Corridor Hatching
C	ROAD	CORR			Roadways: Civil 3D Corridors
C	ROAD	CURB			Roadways: Curbs
C	ROAD	DATA			Roadways: Alignment coordinates and curve data
C	ROAD	DRIV	CNTR		Roadways: Driveway centerline
C	ROAD	DRIV			Roadways: Driveway edge of pavement
C	ROAD	GRAL			Roadways: Guardrails
C	ROAD	GRVL			Roadways: Gravel surface outline
C	ROAD	IDEN			Roadways: Identification annotation
C	ROAD	INTS			Roadways: Intersections
C	ROAD	LINE	EXTN		Roadways: Alignment extension lines
C	ROAD	MRKG			Roadways: Pavement markings
C	ROAD	OTLN			Roads
C	ROAD	SHLD			Roadways: Roadway shoulder
C	ROAD	SIGN			Roadways: Roadway signs
C	ROAD	STAT			Roadways: Stationing and tick marks
C	ROAD	TABL			Roadways: Tables
C	ROAD	TEXT			Roadways: Annotation
C	ROAD	UPVD			Roadways: Unpaved surface outline
RUNWAYS
Discipline	Major	Minor1	Minor2	Status	Description
C	RUNW	ARST			Runways: Runway arresting area
C	RUNW	ARST			Runways: Runway Arresting Gear Location
C	RUNW	ARST			Runway Arresting Gear Location
C	RUNW	BLST			Runways: Runway blast pad
C	RUNW	CLRW			Runways: Runway clearway
C	RUNW	CNTR	MRKG		Runways: Centerline markings
C	RUNW	CNTR			Runways: Runway Centerline
C	RUNW	DIST			Runways: Fixed distance markings
C	RUNW	DSPL			Runways: Displaced threshold
C	RUNW	DSRF	RPZN		Airfield: Runway Protection Zone
C	RUNW	DSRF	RPZN		Runway Protection Zone
C	RUNW	DSRF	SFTY		Airfield: Runway Safety Area
C	RUNW	EDGE			Runways: Airfield runway edges
C	RUNW	ENDP	MRKG		Runways: Runway label marking point
C	RUNW	ENDP			Runways: Runway endpoint
C	RUNW	IDEN			Runways: Runway numbers and letters
C	RUNW	INTS			Runways: Runway intersection
C	RUNW	LAHS			Runways: Runway land and hold short area
C	RUNW	LINE	EXTN		Runways: Runway alignment extension line
C	RUNW	OBFA			Runways: Object Free Area
C	RUNW	SEGM			Runways: Runway segment
C	RUNW	SFTY			Runways: Runway Safety Area
C	RUNW	SHLD			Runways: Runway Shoulder
C	RUNW	SHLD			Runways: Shoulder markings
C	RUNW	SIDE			Runways: Side stripes
C	RUNW	SIGN			Runways: Airfield signs on the runway such as distance remaining signs
C	RUNW	STWY			Runways: Runway stopway markings
C	RUNW	TDZM			Runways: Touchdown zone markers
C	RUNW	THRS			Runways: Threshold markers
SEAPLANES
Discipline	Major	Minor1	Minor2	Status	Description
C	SEAP	BUOY			Seaplanes: Navigation buoy
C	SEAP	DOCK			Seaplanes: Dock
C	SEAP	LNDA			Seaplanes: Landing area
C	SEAP	RAMP	CNTR		Seaplanes: Ramp centerline
C	SEAP	RAMP			Seaplanes: Ramp site
SECTIONS
Discipline	Major	Minor1	Minor2	Status	Description
C	SECT	GRID	GRAD		Sections: Geometry Gridlines
C	SECT	GRID	MAJR		Sections: Major Gridlines
C	SECT	GRID	MINR		Sections: Minor Gridlines
C	SECT	IDEN			Sections: Component identification numbers
C	SECT	MBND			Sections: Material beyond section cut
C	SECT	MCUT			Sections: Material cut by section
C	SECT	OTLN			Sections: Grid Outline
C	SECT	PATT			Sections: Textures and hatch patterns
C	SECT	PROJ			Sections: Projected Objects
C	SECT	ROAD			Sections: Roadways
C	SECT	SSWR			Sections: Sanitary Sewer
C	SECT	STAT			Sections: Stationing and Tick Marks
C	SECT	STRM			Sections: Storm Sewer
C	SECT	TABL	IDEN		Sections: Table Identification and Titles
C	SECT	TABL	PATT		Sections: Table Hatching
C	SECT	TABL	TEXT		Sections: Table Text and Data
C	SECT	TABL			Sections: Tables
C	SECT	TEXT			Sections: Annotation
C	SECT	VIEW			Sections: Civil 3D Section Views
SITE FEATURES
Discipline	Major	Minor1	Minor2	Status	Description
C	SITE	BARR			Site Features: Beam barricade
C	SITE	EROS	IDEN		Site Features: Riprap, revetment/stone protection, breakwater, dike, jetty, and drain annotation
C	SITE	EROS			Site Features: Riprap, revetments/stone protection, breakwaters, dikes, jetties, and drains
C	SITE	FENC	IDEN		Site Features: Fence, handrail, ramp, sign, and trail annotation
C	SITE	FENC	POST		Site Features: Fence Posts
C	SITE	FENC			Site Features: Fences and handrails
C	SITE	GATE			Site Features: Gates along fences or other barriers intended to restrict access
C	SITE	IDEN			Site Features: Identification annotation
C	SITE	IMPR			Site Features: Site improvements (channel or levee features)
C	SITE	LIMI			Site Features: Project Limits of Disturbance
C	SITE	SERT	CMRA		Site Features: Security camera locations outside of buildings
C	SITE	SIGN			Site Features: Signage
C	SITE	STRC			Site Features: Structures (bridges, sheds, foundation pads, footings, etc.)
C	SITE	STRS			Site Features: Stairs and ramps
C	SITE	SYMB			Site Features: Symbols
C	SITE	WALK			Site Features: Walks, trails and bicycle paths
SANITARY SEWER
Discipline	Major	Minor1	Minor2	Status	Description
C	SSWR	CNTR			Sanitary Sewer: Centerlines
C	SSWR	DEVC	ANOD		Sanitary Sewer: Anode
C	SSWR	DEVC	DISC		Sanitary Sewer: Discharge point
C	SSWR	DEVC	DNWS		Sanitary Sewer: Downspout point
C	SSWR	DEVC	GRIT		Sanitary Sewer: Grit chamber
C	SSWR	DEVC	GRSE		Sanitary Sewer: Grease trap
C	SSWR	DEVC	IDEN		Sanitary Sewer: Identifier tags, symbol modifier, and text
C	SSWR	DEVC	INLT		Sanitary Sewer: Inlet Device
C	SSWR	DEVC	METR		Sanitary Sewer: Meters
C	SSWR	DEVC	NEUT		Sanitary Sewer: Neutralizer
C	SSWR	DEVC	OILW		Sanitary Sewer: Oil water separator
C	SSWR	DEVC	PUMP		Sanitary Sewer: Pump
C	SSWR	DEVC	RECT		Sanitary Sewer: Rectifier
C	SSWR	DEVC	TEST		Sanitary Sewer: Anode test station
C	SSWR	DEVC	TRET		Sanitary Sewer: Treatment unit
C	SSWR	DEVC	VALV		Sanitary Sewer: Valve
C	SSWR	DEVC			Sanitary Sewer: Grease traps, grit chambers, flumes, neutralizers, oil/water separators, ejectors, and valves
C	SSWR	FILT	IDEN		Sanitary Sewer: Identifier tags, symbol modifier, and text
C	SSWR	FILT			Sanitary Sewer: Filtration beds
C	SSWR	FLOW			Sanitary Sewer: Flow direction arrows
C	SSWR	FTTG			Sanitary Sewer: Caps and cleanouts
C	SSWR	IDEN			Sanitary Sewer: Identifier tags, symbol modifier, and text
C	SSWR	JBOX	IDEN		Sanitary Sewer: Identifier tags, symbol modifier, and text
C	SSWR	JBOX	PATT		Sanitary Sewer: Junction boxes and manhole hatching
C	SSWR	JBOX			Sanitary Sewer: Junction boxes and manholes
C	SSWR	LAGN			Sanitary Sewer: Lagoons
C	SSWR	LEAC	LAGN		Sanitary Sewer: Leach Field Lagoon
C	SSWR	LEAC	SBED		Sanitary Sewer: Sludge bed
C	SSWR	LEAC			Sanitary Sewer: Leach field
C	SSWR	MHOL			Sanitary Sewer: Manholes
C	SSWR	NITF			Sanitary Sewer: Nitrification drain fields
C	SSWR	PIPE	A		Sanitary Sewer: Abandoned piping
C	SSWR	PIPE	PATT		Sanitary Sewer: New sanitary sewer piping hatching
C	SSWR	PIPE			Sanitary Sewer: Piping
C	SSWR	PLNT			Sanitary Sewer: Treatment plants
C	SSWR	PUMP			Sanitary Sewer: Booster pump stations
C	SSWR	RSVR	IDEN		Sanitary Sewer: Identifier tags, symbol modifier, and text
C	SSWR	SERV			Sanitary Sewer: Service piping
C	SSWR	SIGN			Sanitary Sewer: Surface markers/signs
C	SSWR	SITE			Sanitary Sewer: A wastewater utility company or organization’s certificated area of jurisdiction of responsibility as approved by a federal, state, or local utility regulatory authority
C	SSWR	STNS	IDEN		Sanitary Sewer: Identifier tags, symbol modifier, and text
C	SSWR	TANK	DISP		Sanitary Sewer: Disposal tanks
C	SSWR	TANK			Sanitary Sewer: Septic tanks
C	SSWR	TEXT			Sanitary Sewer: Annotation
C	SSWR	TRET			Sanitary Sewer: A wastewater treatment plant and all appurtenant equipment, buildings, and facilities relating to water treatment
STRUCTURES
Discipline	Major	Minor1	Minor2	Status	Description
C	STRC	IDEN			Structures: Bridges, piers, breakwaters, docks, floats, etc. - annotation
C	STRC	OTLN			Structures: Bridges, piers, breakwaters, docks, floats, etc. - outlines
C	STRC	TOWR			Structures: Tower
STORM SEWERS
Discipline	Major	Minor1	Minor2	Status	Description
C	STRM	AFFF			Storm Sewer: AFFF lagoon/detention pond
C	STRM	CHUT			Storm Sewer: Chutes and concrete erosion control structures
C	STRM	CNTR			Storm Sewer: Centerlines
C	STRM	CULV	CNTR		Storm Sewer: Culvert centerline
C	STRM	CULV	LINE		Storm Sewer: Culvert line
C	STRM	CULV			Storm Sewer: Culverts
C	STRM	DEVC			Storm Sewer: Downspouts, flumes, oil/water separators, and flap gates
C	STRM	DRAN	DIVL		Storm Sewer: Drainage divide line
C	STRM	DRAN	IDEN		Storm Sewer: Identifier tags, symbol modifier, and text
C	STRM	DRAN	LINE		Storm Sewer: Open drainage line
C	STRM	EROS	SILT		Storm Sewer: Silt Fence
C	STRM	EROS	SSLT		Storm Sewer: Super Silt Fence
C	STRM	EROS	TANK		Storm Sewer: Portable Sediment Tank
C	STRM	EROS			Storm Sewer: Erosion control (riprap)
C	STRM	FLHA			Storm Sewer: Flood area
C	STRM	FLOW			Storm Sewer: Flow direction arrows
C	STRM	FMON			Storm Sewer: Flow monitoring station
C	STRM	FTTG			Storm Sewer: Caps and cleanouts
C	STRM	HWAL			Storm Sewer: Headwalls and endwalls
C	STRM	IDEN			Storm Sewer: Identifier tags, symbol modifier, and text
C	STRM	INLT			Storm Sewer: New Inlets (curb, surface, and catch basins)
C	STRM	INLT			Storm Sewer: Inlets (curb, surface, and catch basins)
C	STRM	JBOX			Storm Sewer: Junction
C	STRM	LAGN	BASN		Storm Sewer: Drainage basin
C	STRM	LAGN	OPEN		Storm Sewer: Open drainage area
C	STRM	LAGN	RESV	NODE	Storm Sewer: Reservoir point
C	STRM	LAGN	STIL		Storm Sewer: Stilling basin
C	STRM	LAGN			Storm Sewer: Lagoons, ponds, watersheds, and basins
C	STRM	MHOL			Storm Sewer: Manholes
C	STRM	PATT			Storm Sewer: Hatching
C	STRM	PIPE	A		Storm Sewer: Abandoned piping
C	STRM	PIPE	PATT		Storm Sewer: Storm Piping Hatching
C	STRM	PIPE	TEXT		Storm Sewer: Annotation
C	STRM	PIPE			Storm Sewer: Piping
C	STRM	PUMP			Storm Sewer: Pump stations
C	STRM	ROOF			Storm Sewer: Roof drain line
C	STRM	RSVR	IDEN		Storm Sewer: Identifier tags, symbol modifier, and text
C	STRM	SERV			Storm Sewer: Service piping
C	STRM	SIGN			Storm Sewer: Surface markers/signs
C	STRM	STAT	PUMP		Storm Sewer: Pump station
C	STRM	STNS	IDEN		Storm Sewer: Identifier tags, symbol modifier, and text
C	STRM	STRC	PATT		Storm Sewer: Structures Hatching
C	STRM	STRC			Storm Sewer: Storm drainage, headwalls, inlets, manholes, culverts, and drainage structures
C	STRM	SUBS			Storm Sewer: Subsurface drain piping
C	STRM	TABL			Storm Sewer: Tables
C	STRM	TEXT			Storm Sewer: Annotation
SURVEY
Discipline	Major	Minor1	Minor2	Status	Description
C	SURV	DATA			Survey: Survey data (benchmarks and horizontal control points or monuments)
C	SURV	IDEN			Survey: Baseline, and control line annotation
C	SURV	LINE			Survey: Baseline, and control lines
TAXIWAYS
Discipline	Major	Minor1	Minor2	Status	Description
C	TAXI	ACCS			Taxiways: Contractor Access Route
C	TAXI	CNTR	IDEN		Taxiways: Centerline annotation
C	TAXI	CNTR	MRKG		Taxiways: Centerline markings
C	TAXI	CNTR			Taxiways: Centerline
C	TAXI	EDGE			Taxiways: Edge markings
C	TAXI	HOLD			Taxiways: Holding lines
C	TAXI	IDEN			Taxiways: Annotation
C	TAXI	INTS			Taxiways: Intersection
C	TAXI	JNTS			Taxiways: Joints
C	TAXI	OFA			Taxiways: Object Free Area
C	TAXI	OTLN			Taxiways: Outlines
C	TAXI	SFTY			Taxiways: Safety Area
C	TAXI	SHLD			Taxiways: Shoulder transverse stripes
C	TAXI	SIGN			Taxiways: Airfield signs on the taxiway such as taxiway designator, hold short and directional signs
TOPOGRAPHY
Discipline	Major	Minor1	Minor2	Status	Description
C	TOPO	AUCO			Topography: Noise Complaint
C	TOPO	AUST			Topography: Noise Monitoring Station
C	TOPO	AUZN			Topography: Noise Contour/Zone
C	TOPO	BORE			Topography: Boring locations
C	TOPO	BRKL			Topography: Breaklines
C	TOPO	FDPL			Topography: Flood Zone
C	TOPO	GRID	COOR		Topography: Coordinate grid ticks and text
C	TOPO	MAJR	IDEN		Topography: Major contours - annotation
C	TOPO	MAJR			Topography: Major contours
C	TOPO	MINR	IDEN		Topography: Minor contours - annotation
C	TOPO	MINR	ONEF		Topography: Minor contours - One Foot Intervals
C	TOPO	MINR	TWOF		Topography: Minor contours - Two Foot Intervals
C	TOPO	MINR			Topography: Minor contours
C	TOPO	NSCO			Topography: Noise Complaint
C	TOPO	NSST			Topography: Noise Monitoring Station
C	TOPO	NSZN			Topography: Noise Contour/Zone
C	TOPO	RTWL			Topography: Retaining wall
C	TOPO	RUNW	NODE		Topography: Runway centerline elevation point
C	TOPO	SHOR			Topography: Shorelines, land features, and references
C	TOPO	SLOP	CUTS		Topography: Cut slopes
C	TOPO	SLOP	FILL		Topography: Fill slopes
C	TOPO	SLOP	IDEN		Topography: Cut/fill slope, top/toe slope annotation
C	TOPO	SLOP	TOPT		Topography: Top/toe slopes
C	TOPO	SLOP			Topography: Cut/fill slopes
C	TOPO	SOUN			Topography: Soundings and overbanks
C	TOPO	SPOT	IDEN		Topography: Spot elevations - annotation
C	TOPO	SPOT			Topography: Spot elevations
C	TOPO	TEXT			Topography: Annotation
C	TOPO	TINN	BNDY		Topography: DTM Boundaries
C	TOPO	TINN	NODE		Topography: DTM points
C	TOPO	TINN			Topography: DTM triangles
C	TOPO	USER			Topography: User Specified Contour
C	TOPO	WATR			Topography: Water area
C	TOPO	WDRP			Topography: Water Drop
C	TOPO				Topography: DTM
UTILITIES GENERAL
Discipline	Major	Minor1	Minor2	Status	Description
C	UTIL	AREA			Utilities: Utility area
C	UTIL	CNDT			Utilities: Conduit centerline
C	UTIL	DIST			Utilities: Energy distribution control facility
C	UTIL	SOLR			Utilities: Solar panel
C	UTIL	TANK			Utilities: Tank
C	UTIL	TUNL			Utilities: Tunnel centerline
C	UTIL	UDOR			Utilities: Utility utilidor line
C	UTIL	UNID	LINE		Utilities: Undefined utility line
C	UTIL	UNID			Utilities: Undefined feature
WATER
Discipline	Major	Minor1	Minor2	Status	Description
C	WATR	PIPE			Utilities: Water lines, hydrants, tanks
C	WATR	TEXT			Utilities: Water Annotation
C	WATR	VALV			Utilities: Water valves and fittings

AIRFIELD
Discipline	Major	Minor1	Minor2	Status	Description
E	AFLD	CIRC	CTRL		Control and monitoring circuits
E	AFLD	CIRC	MULT		Multiple circuits
E	AFLD	CIRC	SERS		Series circuits
E	AFLD	VALT			Airfield lighting vaults
ALARM SYSTEMS
Discipline	Major	Minor1	Minor2	Status	Description
E	ALRM	EQPM			Alarm system equipment
E	ALRM	IDEN			Identifier tags, symbol modifier, and text
E	ALRM	SYMB			Miscellaneous alarm system symbols
GENERAL INFORMATION
Discipline	Major	Minor1	Minor2	Status	Description
E	ANNO	DIMS			Witness/extension lines, dimension terminators, dimension text
E	ANNO	KEYN			Reference keynotes with associated leaders
E	ANNO	NOTE			General notes and general remarks
E	ANNO	NPLT			Non-plotting graphic information
E	ANNO	PATT			Miscellaneous patterning and hatching
E	ANNO	REFR			Reference files
E	ANNO	SYMB			Miscellaneous symbols
E	ANNO	TEXT			Miscellaneous text and callouts with associated leaders
BEACONS
Discipline	Major	Minor1	Minor2	Status	Description
E	BCNS	IDEN			Identifier tags, symbol modifier, and text
E	BCNS	MISC			Miscellaneous navaids - windcones and beacons
E	BCNS	STRB			Strobe beacons
BELL SYSTEMS
Discipline	Major	Minor1	Minor2	Status	Description
E	BELL	EQPM			Bell system equipment
E	BELL	IDEN			Identifier tags, symbol modifier, and text
E	BELL	SYMB			Bell system symbols
CABLE SYSTEMS
Discipline	Major	Minor1	Minor2	Status	Description
E	CABL	COAX			Coax cable
E	CABL	FIBR			Fiber optics cable
E	CABL	IDEN			Cable identifiers
E	CABL	MULT			Multi-conductor cable
E	CABL	TRAY			Cable trays and wireways
CATHODIC PROTECTION SYSTEMS
Discipline	Major	Minor1	Minor2	Status	Description
E	CATH	ANOD			Sacrificial anode system
E	CATH	CURR			Impress current system
E	CATH	IDEN			Identifier tags, symbol modifier, and text
E	CATH	TEST			Test stations
CLOSED-CIRCUIT TELEVISION SYSTEMS
Discipline	Major	Minor1	Minor2	Status	Description
E	CATV	IDEN			Identifier tags, symbol modifier, and text
E	CATV	SYMB			Cable television system symbols
E	CCTV	IDEN			Identifier tags, symbol modifier, and text
E	CCTV	SYMB			Closed-circuit television system symbols
CIRCUITS
Discipline	Major	Minor1	Minor2	Status	Description
E	CIRC	CTRL			Control and monitoring circuits
E	CIRC	IDEN			Identifier tags, symbol modifier, and text
E	CIRC	MULT			Multiple circuits
E	CIRC	SERS			Series circuits
CLOCK SYSTEMS
Discipline	Major	Minor1	Minor2	Status	Description
E	CLOK	IDEN			Identifier tags, symbol modifier, and text
E	CLOK	SYMB			Clock system symbols
COMMUNICATIONS
Discipline	Major	Minor1	Minor2	Status	Description
E	COMM	ACCS			Access point
E	COMM	AIRP			Air pipe line
E	COMM	COVR			Access coverage area
E	COMM	DUCT			Duct line
E	COMM	EQPM			Other communications distribution equipment
E	COMM	EQPM	AIR~		Air pressure device
E	COMM	EQPM	AMPL		Amplifier
E	COMM	EQPM	ANTL		Antenna line
E	COMM	EQPM	ANTS		Antenna site
E	COMM	EQPM	ATTN		Attenuator
E	COMM	EQPM	BOTH		Telephone booth site
E	COMM	EQPM	CLAD		Cable ladder
E	COMM	EQPM	CRCK		Cable rack line
E	COMM	EQPM	DSPL		Dbsplice site
E	COMM	EQPM	GPLN		Ground plane
E	COMM	EQPM	GPNT		Ground point
E	COMM	EQPM	GWAV		Ground wave
E	COMM	EQPM	IMPD		Impedance matching point
E	COMM	EQPM	PHON		Telephone
E	COMM	EQPM	PULB		Pullbox site
E	COMM	EQPM	RELY		Relay station
E	COMM	EQPM	RISR		Riser
E	COMM	EQPM	RPTR		Repeater
E	COMM	EQPM	SATE		Satellite
E	COMM	EQPM	SENS		Sensor
E	COMM	EQPM	SPKR		Speaker
E	COMM	EQPM	SPLC		Splice
E	COMM	EQPM	SPLT		Splitter
E	COMM	EQPM	TMTR		Terminator
E	COMM	EQPM	TRML		Terminal
E	COMM	EQPM	TWIS		Twisted pair line
E	COMM	HAND			Handhole
E	COMM	INET	SITE		Internet center site
E	COMM	JBOX			Communication junction or pull boxes, man/handholes, pedestals, splices
E	COMM	LCAP			Load capacitor
E	COMM	LCOL			Load coil
E	COMM	LINE	CBRG		Cable bridge line
E	COMM	LINE	LOOP		Service loop
E	COMM	LINE	SEGL		Segmented cable line
E	COMM	LINE	SEGS		Segmented cable site
E	COMM	LOSL			Line of sight line
E	COMM	MCNV			Media converter
E	COMM	MHOL			Manhole site
E	COMM	MHOP			Multihop polygon area
E	COMM	NETS			Network systems site
E	COMM	OVHD			Overhead communications/telephone lines
E	COMM	OVHD	IDEN		Identifier tags, symbol modifier and text
E	COMM	PATH	SITE		Path node site
E	COMM	PATH	SLIN		Path segment line
E	COMM	PEDS			Pedestal site
E	COMM	RADI			Radio
E	COMM	RADI	RCVR		Radio receiver site
E	COMM	RADI	TSMR		Radio transmitter site
E	COMM	RADR			Radar site
E	COMM	SIGN			Marker
E	COMM	UGND			Underground communications/telephone lines
E	COMM	UGND	IDEN		Identifier tags, symbol modifier and text
E	COMM	VALT			Communications vault site
E	COMM	VIDS			Video site
E	COMM	VOIC			Voice switch site
E	COMM	VSIT			Vertical site
E	COMM	WAVG			Waveguide line
DETAIL INFORMATION
Discipline	Major	Minor1	Minor2	Status	Description
E	DETL	GRPH			Graphics, gridlines, non-text items
E	DETL	INPD			Inch-pound-specific dimensions and notes
E	DETL	METR			Metric-specific dimensions and notes
DIAGRAM INFORMATION
Discipline	Major	Minor1	Minor2	Status	Description
E	DIAG	GRPH			Graphics, gridlines, non-text items
E	DIAG	IDEN			Identifier tags, symbol modifier and text
E	DIAG	INPD			Inch-pound-specific dimensions and notes
E	DIAG	METR			Metric-specific dimensions and notes
CENTRAL DICTRATION SYSTEMS
Discipline	Major	Minor1	Minor2	Status	Description
E	DICT	IDEN			Identifier tags, symbol modifier, and text
E	DICT	INFO			Clearances and working space information (NEC code, etc.)
E	DICT	SYMB			Central dictation system symbols
UNDERGROUND DUCTBANKS (to be used when multiple systems are in one ductbank system)
Discipline	Major	Minor1	Minor2	Status	Description
E	DUCT	MULT			Ductbank
E	DUCT	MULT	IDEN		Identifier tags, symbol modifier and text
ELECTRIC
Discipline	Major	Minor1	Minor2	Status	Description
E	ELEC	DEVC			Capacitors, voltage regulators, motors, buses, generators, meters, grounds, and markers
E	ELEC	JBOX			Junction boxes, pull boxes, manholes, handholes, pedestals, splices
E	ELEC	SUBS			Other substation equipment
E	ELEC	SWCH			Fuse cutouts, pole mounted switches, circuit breakers, gang operated disconnects, reclosers, cubicle switches
E	ELEC	VALT			Vaults
ENERGY MONITORING CONTROL SYSTEMS
Discipline	Major	Minor1	Minor2	Status	Description
E	EMCS	EMER			Emergency systems equipment
E	EMCS	EQPM			Energy monitoring control system equipment
E	EMCS	EQPM	DUCT		Ductbank line
E	EMCS	EQPM	JBOX		Junction
E	EMCS	EQPM	SIGN		Marker
E	EMCS	IDEN			Identifier tags, symbol modifier, and text
E	EMCS	SYMB			Energy monitoring control system symbols
FLOOR INFORMATION
Discipline	Major	Minor1	Minor2	Status	Description
E	FLOR	IDEN			Room name, space identification text (copied from Architectural - Floor Plan model file)
E	FLOR	NUMB			Room/space identification number and symbol (copied from Architectural - Floor Plan model file)
GROUND SYSTEM
Discipline	Major	Minor1	Minor2	Status	Description
E	GRND	CIRC			Circuits
E	GRND	DIAG			Ground system diagram
E	GRND	EQUI			Equipotential ground system
E	GRND	REFR			Reference ground system
INTERCOM SYSTEM
Discipline	Major	Minor1	Minor2	Status	Description
E	INTC	IDEN			Identifier tags, symbol modifier, and text
E	INTC	SYMB			Intercom/PA system symbols
LIGHTING
Discipline	Major	Minor1	Minor2	Status	Description
E	LITE	APPR			Approach lights
E	LITE	APRN			Apron Lighting
E	LITE	CIRC			Lighting circuits (including crosslines and homeruns)
E	LITE	CIRC	NUMB		Lighting circuit numbers (e.g., panel/circuit number, wire/conduit size)
E	LITE	CLNG			Ceiling mounted (surface/pendant) fixtures
E	LITE	CONS			Constant Current Regulators
E	LITE	DIST			Distance and arresting gear markers and lights
E	LITE	EMER			Emergency fixtures (outline of light (if ceiling mounted) should go on E-LITE-CLNG)
E	LITE	EXIT			Exit fixtures (outline of light (if ceiling mounted) should go on E-LITE-CLNG)
E	LITE	EXTR			Exterior lights
E	LITE	EXTR	IDEN		Identifier tags, symbol modifier, and text
E	LITE	FLOR			Floor mounted fixtures (e.g., stage)
E	LITE	IDEN			Light fixture identifier tags
E	LITE	JBOX			Junction boxes
E	LITE	LANE			Hoverlane, taxilane, and helipad lights
E	LITE	OBST			Obstruction lights
E	LITE	PANL			Main distribution panels, switchboards, lighting panels
E	LITE	ROOF			Roof lighting
E	LITE	RUNW	CNTR		Runway Centerline lights
E	LITE	RUNW	DTGS		Runway Distance to go lights
E	LITE	RUNW	DTGS		Runway Distance to go lights
E	LITE	RUNW	EDGE		Runway edge lights
E	LITE	RUNW	EDGE		Runway edge lights
E	LITE	RUNW	GARD		Runway guard lights
E	LITE	RUNW	GARD		Runway guard lights
E	LITE	RUNW	TDZN		Runway Touchdown Zone lights
E	LITE	RUNW	TDZN		Runway Touchdown Zone lights
E	LITE	SIGN			Taxiway guidance signs
E	LITE	SIGN			Taxiway guidance signs
E	LITE	SPCL			Special fixtures
E	LITE	SWCH			Lighting contactors, photoelectric controls, low-voltage lighting controls, etc.
E	LITE	TAXI	CNTR		Taxiway centerline lights
E	LITE	TAXI	CNTR		Taxiway centerline lights
E	LITE	TAXI	EDGE		Taxiway edge lights
E	LITE	TAXI	EDGE		Taxiway edge lights
E	LITE	THRS			Threshold lights
E	LITE	THRS			Threshold lights
E	LITE	WALL			Wall mounted fixtures
LIGHTING PROTECTION SYSTEMS
Discipline	Major	Minor1	Minor2	Status	Description
E	LTNG	COND			Lightning protection conductors
E	LTNG	TRML			Lightning protection terminals
NURSE CALL / PAGING SYSTEMS
Discipline	Major	Minor1	Minor2	Status	Description
E	NURS	IDEN			Identifier tags, symbol modifier, and text
E	NURS	SYMB			Nurse call/paging system symbols
POLES
Discipline	Major	Minor1	Minor2	Status	Description
E	POLE	GUYP			Guying equipment
E	POLE	GUYP	IDEN		Guying equipment identifier tags, symbol modifiers, and text
E	POLE	IDEN			Utility pole identifier tags, symbol modifier, and text
E	POLE	UTIL			Utility poles
POWER
Discipline	Major	Minor1	Minor2	Status	Description
E	POWR	AUXL			Generators and auxiliary equipment
E	POWR	BUSW			Busways and wireways
E	POWR	CABL			Cable trays
E	POWR	CAPC			Capacitor
E	POWR	CIRC			Power circuits (including crosslines and homeruns)
E	POWR	CIRC	NUMB		Power circuit numbers (e.g., panel/circuit number, wire/conduit size)
E	POWR	CLNG			Ceiling outlets (receptacles and switches)
E	POWR	FEED			Feeders
E	POWR	GENR			Generators and auxiliary equipment
E	POWR	HBLT			Head bolt outlet
E	POWR	JBOX			Junction boxes
E	POWR	METR			Meter
E	POWR	MOTR			Motors and utilization equipment
E	POWR	PANL			Panelboards, switchboards, MCC, unit substations
E	POWR	PEDS			Pedestal
E	POWR	POLE	CNDT		Utility pole conduit
E	POWR	POLE	GUYP		Utility pole guy point
E	POWR	REGL			Regulator
E	POWR	RISR			Riser
E	POWR	SIGN			Marker
E	POWR	SITE			Utility electric utility site
E	POWR	SPLC			Splice
E	POWR	SUBS			Other substation equipment
E	POWR	SWCH			Fuse cutouts, motor starters, contactors, pole mounted switches, circuit breakers, gang operated disconnects, reclosers, cubicle switches
E	POWR	URAC			Underfloor raceways
E	POWR	WALL			Wall/floor outlets (receptacles and switches)
E	POWR	XFMR	PADM		Pad mounted transformers
E	POWR	XFMR	POLE		Pole mounted transformers
PRIMARY ELECTRICAL CABLES
Discipline	Major	Minor1	Minor2	Status	Description
E	PRIM	OVHD			Overhead electrical utility lines
E	PRIM	OVHD	IDEN		Identifier tags, symbol modifier, and text
E	PRIM	UGND			Underground electrical utility lines
E	PRIM	UGND	IDEN		Identifier tags, symbol modifier, and text
SECONDARY ELECTRICAL CABLES
Discipline	Major	Minor1	Minor2	Status	Description
E	SECD	OVHD			Overhead electrical utility lines
E	SECD	OVHD	IDEN		Identifier tags, symbol modifier, and text
E	SECD	UGND			Underground electrical utility lines
E	SECD	UGND	IDEN		Identifier tags, symbol modifier, and text
SECURITY SYSTEMS
Discipline	Major	Minor1	Minor2	Status	Description
E	SERT	ACCS			Access control system symbols
E	SERT	BURD			Buried sensors
E	SERT	CLNG			Ceiling mounted sensors
E	SERT	FLOR			Floor mounted sensors
E	SERT	IDEN			Identifier tags, symbol modifier, and text
E	SERT	UGND			Buried sensors
E	SERT	WALL			Wall mounted sensors
SOUND / PA SYSTEMS
Discipline	Major	Minor1	Minor2	Status	Description
E	SOUN	IDEN			Identifier tags, symbol modifier, and text
E	SOUN	SYMB			Sound system symbols
SPECIAL SYSTEMS
Discipline	Major	Minor1	Minor2	Status	Description
E	SPCL	IDEN			Special systems (UMCS, EMCS, CATV, etc.) identifier tags, symbol modifier, and text
E	SPCL	JBOX			Junction boxes
E	SPCL	PANL			Panelboards, backing boards, patch panel racks
E	SPCL	SRFS			Surface Sensor System
E	SPCL	SYST			Special systems (UMCS, EMCS, CATV, etc.)
E	SPCL	TRAF			Traffic signal system
E	SPCL	TRAF	IDEN		Traffic signal identifier tags, symbol modifier, and text
TV ANTENNA SYSTEM
Discipline	Major	Minor1	Minor2	Status	Description
E	TVAN	IDEN			Identifier tags, symbol modifier, and text
E	TVAN	SYMB			TV antenna system symbols

Discipline	Major	Minor1	Description
AQUEOUS FILM FORMING FOAM SYSTEM
F	AFFF	EQPM	Equipment
F	AFFF	PIPE	Piping
ALARM SYSTEM
F	ALRM	DTCT	Smoke/heat/other detectors
F	ALRM	INDC	Indicating appliances
F	ALRM	MANL	Manual fire alarm pull stations
F	ALRM	PHON	Fire service or emergency telephone stations
GENERAL INFORMATION
F	ANNO	DIMS	Witness/extension lines, dimension terminators, dimension text
F	ANNO	KEYN	Reference keynotes with associated leaders
F	ANNO	NOTE	General notes and general remarks
F	ANNO	NPLT	Non-plotting graphic information
F	ANNO	PATT	Miscellaneous patterning and hatching
F	ANNO	REFR	Reference files (AutoCAD users only, see Chapter 4)
F	ANNO	SYMB	Miscellaneous symbols
F	ANNO	TEXT	Miscellaneous text and callouts with associated leaders
CO2 SPRINKLER SYSTEM
F	CO2S	EQPM	Equipment
F	CO2S	PIPE	CO2 piping or CO2 discharge nozzle piping
CONTROL PANELS
F	CTRL	PANL	Control panels
DETAIL INFORMATION
F	DETL	GRPH	Graphics, gridlines, non-text items
F	DETL	INPD	Inch-pound-specific dimensions and notes
F	DETL	METR	Metric-specific dimensions and notes
FLOOR INFORMATION
F	FLOR	IDEN	Room name, space identification text (copied from Architectural - Floor Plan model file)
F	FLOR	NUMB	Room/space identification number and symbol (copied from Architectural - Floor Plan model file)
HALON SYSTEM
F	HALN	EQPM	Halon equipment
F	HALN	PIPE	Halon piping
INERT GAS
F	IGAS	EQPM	Inert gas equipment
F	IGAS	PIPE	Inert gas piping
LIGHTING
F	LITE	EMER	Emergency fixtures
F	LITE	EXIT	Exit fixtures
EGRESS REQUIREMENTS
F	LSFT	EGRE	Egress requirements designator
F	LSFT	OCCP	Occupant load for egress capacity
F	LSFT	TRVL	Maximum travel distances
FIRE PROTECTION / SUPPRESSION / ALARM / DETECTION EQUIPMENT
F	PROT	CABN	Fire hose cabinets
F	PROT	EXTN	Fire extinguishers and fire extinguisher cabinets
F	PROT	HOSE	Fire hoses
FIRE RATINGS
F	RATE	DOOR	Door fire ratings
F	RATE	WALL	Wall fire ratings
SMOKE / PRESSURIZATION CONTROL
F	SMOK	DAMP	Dampers
SPRINKLER SYSTEM
F	SPRN	CLHD	Sprinkler - ceiling heads
F	SPRN	COMB	Combination system
F	SPRN	OTHD	Sprinkler - other heads
F	SPRN	OTHR	Sprinkler - other
F	SPRN	PEND	Sprinkler - pendant
F	SPRN	PIPE	Sprinkler piping
F	SPRN	STAN	Standpipe system
WATER SUPPLY AND DISTRIBUTION
F	WATR	CONN	Fire department connections
F	WATR	HYDR	Hydrants
F	WATR	PIPE	Piping
F	WATR	PUMP	Fire pumps

Discipline	Major	Minor1	Minor2	Description
GENERAL INFORMATION
G	ANNO	DIMS		Witness/extension lines, dimension terminators, dimension text
G	ANNO	IDEN		Identification Tags: Floor Id. #s; Room #s; Door #s; hardware group; Window #s; Equipment Id. #s; Furniture #s; Tenant Identification; Area calculations; Occupant or employee names; Elevation Id. #s; Component Id. #s
G	ANNO	KEYN		Reference keynotes with associated leaders
G	ANNO	KEYP	ANNO	Key plan text, scale, north arrow
G	ANNO	KEYP	BKGN	Key plan background pattern
G	ANNO	KEYP	OTLN	Key plan sheet outlines
G	ANNO	KEYP	PATT	Key plan current sheet pattern
G	ANNO	KEYP	TOPO	Key plan topo
G	ANNO	LEGN		Legends
G	ANNO	MATC		Match Lines
G	ANNO	MATC	IDEN	Match Line Identification
G	ANNO	MATC	PATT	Match Line Hatching
G	ANNO	NOTE		Notes
G	ANNO	NPLT		Non-plotting graphic information
G	ANNO	PATT		Miscellaneous patterning and hatching
G	ANNO	REDL		Redline Annotations
G	ANNO	REFR		Reference files (AutoCAD users only, see Chapter 4)
G	ANNO	REVS		Revisions
G	ANNO	SCHD		Schedules
G	ANNO	SYMB		Miscellaneous symbols
G	ANNO	TEXT		Miscellaneous text and callouts with associated leaders
G	ANNO	TITL		Drawing Component Titles, Detail Titles, Section Titles, Elevations
G	ANNO	TTLB		Border and title block linework
G	ANNO	VPRT		Viewport
GRIDS
G	GRID	EXTR		Column grid outside building
G	GRID	IDEN		Column grid tags
PLAN / OUTLINE
G	PLAN	OTLN		Floor outline/perimeter/building footprint
SITE INFORMATION
G	SITE	OTLN		Site plan - key map

Discipline	Major	Minor1	Layer Description
GENERAL INFORMATION
H	ANNO	DIMS	Hazardous Annotation: Witness/extension lines, dimension terminators, dimension text
H	ANNO	KEYN	Hazardous Annotation: Reference keynotes with associated leaders
H	ANNO	NPLT	Hazardous Annotation: Non-plotting graphic information
H	ANNO	PATT	Hazardous Annotation: Miscellaneous patterning
H	ANNO	SYMB	Hazardous Annotation: Reference bubbles, matchlines and breaklines
H	ANNO	TEXT	Hazardous Annotation: Detail title text, text and associated leaders, notes
BUILDINGS
H	BLDG	IDEN	Buildings: Annotation
H	BLDG	OTLN	Buildings: Command posts, information centers
DECONTAMINATION
H	DECN	EQPM	Decontamination: Equipment
H	DECN	IDEN	Decontamination: Annotation
DETAIL INFORMATION
H	DETL	GRPH	Details: Graphics, gridlines, non-text items
H	DETL	INPD	Details: Inch-pound-specific dimensions and notes
H	DETL	METR	Details: Metric-specific dimensions and notes
DISPOSAL AREAS
H	DISP	HAZW	Disposal Areas: Hazardous waste
H	DISP	IDEN	Disposal Areas: Annotation
H	DISP	MUNT	Disposal Areas: Munitions
H	DISP	TANK	Disposal Areas: Spill containment tanks
FIXTURES
H	FIXT	EYEW	Fixtures: Emergency eyewashes
H	FIXT	SHOW	Fixtures: Emergency showers
MONITORING SYSTEMS
H	MNST	AIRQ	Monitoring Systems: Air quality
H	MNST	GNDW	Monitoring Systems: Ground water
H	MNST	IDEN	Monitoring Systems: Annotation
H	MNST	LAND	Monitoring Systems: Landfill gas
H	MNST	SOIL	Monitoring Systems: Soil gas
H	MNST	SWTR	Monitoring Systems: Surface water
POLLUTION AREAS
H	POLL	CNCR	Pollution Areas: Polluted area of concern
H	POLL	IDEN	Pollution Areas: Annotation
H	POLL	ORIG	Pollution Areas: Point of pollution origin
H	POLL	POTN	Pollution Areas: Potential spill, emission, or release source
SAMPLE POINTS
H	SAMP	AIRS	Sample Points: Air samples
H	SAMP	BIOL	Sample Points: Biological samples
H	SAMP	GNDW	Sample Points: Ground water samples
H	SAMP	IDEN	Sample Points: Annotation
H	SAMP	MAGN	Sample Points: Magnetometer location points
H	SAMP	SEDI	Sample Points: Sediment samples
H	SAMP	SOIL	Sample Points: Soil samples
H	SAMP	SOLI	Sample Points: Solid material samples
H	SAMP	SWTR	Sample Points: Surface water samples
H	SAMP	WAST	Sample Points: Waste samples
SECTIONS
H	SECT	IDEN	Sections: Component identification numbers
H	SECT	MBND	Sections: Material beyond section cut
H	SECT	MCUT	Sections: Material cut by section
H	SECT	PATT	Sections: Textures and hatch patterns
STORAGE FACILITIES
H	STOR	HAZM	Storage Facilities: Hazardous materials
H	STOR	HAZW	Storage Facilities: Hazardous waste
H	STOR	IDEN	Storage Facilities: Annotation

Discipline	Major	Minor1	Description
GENERAL INFORMATION
I	ANNO	DIMS	Witness/extension lines, dimension terminators, dimension text
I	ANNO	KEYN	Reference keynotes with associated leaders
I	ANNO	NOTE	General notes and general remarks
I	ANNO	NPLT	Non-plotting graphic information
I	ANNO	PATT	Miscellaneous patterning
I	ANNO	SYMB	Reference bubbles, matchlines and breaklines
I	ANNO	TEXT	Detail title text, text and associated leaders, notes
DETAIL INFORMATION
I	DETL	GRPH	Graphics, gridlines, non-text items
I	DETL	INPD	Inch-pound-specific dimensions and notes
I	DETL	METR	Metric-specific dimensions and notes
ELEVATIONS
I	ELEV	CASE	Wall mounted casework
I	ELEV	FIXT	Miscellaneous fixtures
I	ELEV	FNSH	Finishes, woodwork and trim
I	ELEV	IDEN	Component identification numbers
I	ELEV	PATT	Textures and hatch patterns
I	ELEV	PFIX	Plumbing fixtures in elevation
I	ELEV	SIGN	Signage
EQUIPMENT
I	EQPM	ACCS	Equipment access
I	EQPM	CHLD	Child development (play toys, teaching rugs, play forms)
I	EQPM	COPY	Copiers, fax machines, office equipment
I	EQPM	FIXD	Fixed equipment
I	EQPM	IDEN	Equipment identification numbers
I	EQPM	MEDI	Medical (exam beds, dental chairs, etc.)
I	EQPM	MOVE	Moveable equipment
I	EQPM	NICN	Not in contract equipment
I	EQPM	OVHD	Overhead, ceiling mounted, and suspended equipment
I	EQPM	STOR	Storage equipment
FLOORING ITEMS AND MATERIALS
I	FLOR	SIGN	Signage
FURNISHINGS
I	FURN	ACCS	Accessories (vestibule matts, partitions, draperies, clocks, trashcans, lecturns, lamps, etc.)
I	FURN	ADPC	Automated Data Processing Components
I	FURN	ARTW	Artwork
I	FURN	CASE	Case goods (desks, credenzas, beds, dressers, nightstands, wardrobes, etc.)
I	FURN	FLOR	Flooring (carpet, rugs, etc.)
I	FURN	FREE	Free-standing furnishings (desks, beds, tables, dressers, credenzas, case goods)
I	FURN	GRID	Planning grid/modular outline
I	FURN	IDEN	Furniture code identification
I	FURN	MISC	Miscellaneous furniture
I	FURN	PLNT	Plants
I	FURN	SEAT	Chairs, sofas, etc.
I	FURN	STOR	File cabinets, high density storage, shelving, storage cabinets
SECURITY
I	SECT	CMRA	Security camera locations Inside of buildings
SYSTEM FURNITURE
I	SYST	BIDS	Baggage information display system equipment used in an airport terminal
I	SYST	CUTE	Common use terminal equipment in an airport terminal
I	SYST	FIDS	Flight information display system equipment used in an airport terminal
I	SYST	FURN	Furniture
I	SYST	IDEN	Code identification
I	SYST	LITE	Lighting components
I	SYST	PATT	Patterns
I	SYST	PNLS	Panels
I	SYST	POWR	Power, communication components
I	SYST	STOR	Storage components
I	SYST	WALL	Systems furniture partition walls
I	SYST	WKSF	Work surface components

Discipline	Major	Minor1	Minor2	Layer Description
GENERAL INFORMATION
L	ANNO	DIMS		Landscape Annotation: Witness/extension lines, dimension terminators, dimension text
L	ANNO	KEYN		Landscape Annotation: Reference keynotes with associated leaders
L	ANNO	NOTE		Landscape Annotation: General notes and general remarks
L	ANNO	NPLT		Landscape Annotation: Non-plotting graphic information
L	ANNO	PATT		Landscape Annotation: Miscellaneous patterning
L	ANNO	SYMB		Landscape Annotation: Reference bubbles, matchlines and breaklines
L	ANNO	TEXT		Landscape Annotation: Detail title text, text and associated leaders, notes
DETAIL INFORMATION
L	DETL	CABS		Details: Cabinets, enclosures
L	DETL	CONC		Details: Concrete
L	DETL	ERTH		Details: Earth
L	DETL	FENC		Details: Fencing
L	DETL	FILL		Details: Fill/cover material
L	DETL	FURN		Details: Furniture, furnishings
L	DETL	GATE		Details: Gate
L	DETL	GENF		Details: General features (miscellaneous items)
L	DETL	GRAS		Details: Grass, sod
L	DETL	GRPH		Details: Graphics, gridlines, non-text items
L	DETL	INPD		Details: Inch-pound-specific dimensions and notes
L	DETL	METR		Details: Metric-specific dimensions and notes
L	DETL	STRC		Details: Structural metal, supports
L	DETL	TANK		Details: Tank Site
L	DETL	VALV		Details: Valves, fittings
L	DETL	VEGE		Details: Planting details
L	DETL	WIRE		Details: Wiring
IRRIGATION SYSTEM
L	IRRG	COVR		Irrigation: Irrigation coverage, spray distribution patterns
L	IRRG	EQPM		Irrigation: Equipment (e.g., controllers, valves, RPBPs, etc.)
L	IRRG	HEAD		Irrigation: Irrigation heads, bubblers, and drip irrigation emitters
L	IRRG	IDEN		Irrigation: Annotation
L	IRRG	PIPE		Irrigation: Piping
L	IRRG	SPKL		Irrigation: Sprinklers
PLANT AND LANDSCAPING MATERIAL
L	PLNT	BEDS		Planting: Planting beds
L	PLNT	BUSH		Planting: Bushes and shrubs (e.g., evergreen, deciduous)
L	PLNT	BUSH	LINE	Planting: Bush and shrub line
L	PLNT	CTNR		Planting: Containers or planters
L	PLNT	GRND		Planting: Groundcover and vines
L	PLNT	IDEN		Planting: Annotation
L	PLNT	MLCH		Planting: Mulches - organic and inorganic
L	PLNT	PLNT		Planting: Planting plants (e.g., ornamental annuals and perennials)
L	PLNT	PLTS		Planting: Planting plants (e.g., ornamental annuals and perennials)
L	PLNT	SHAD		Planting: Shadow areas
L	PLNT	SPRG		Planting: Sprigs
L	PLNT	TREE		Planting: Trees (e.g., evergreen, deciduous, etc.)
L	PLNT	TREE	LINE	Planting: Tree line
L	PLNT	TURF		Planting: Lawn areas (turfing limits)
SITE IMPROVEMENTS
L	SITE	BRDG		Site: Bridges
L	SITE	DECK		Site: Decks
L	SITE	FENC		Site: Fencing
L	SITE	FURN		Site: Furnishings
L	SITE	GATE		Site: Gate
L	SITE	IDEN		Site: Annotation
L	SITE	PLAY		Site: Play structures
L	SITE	POOL		Site: Pools and spas
L	SITE	ROCK		Site: Boulders and cobble
L	SITE	RTWL		Site: Retaining walls
L	SITE	SPRT		Site: Sports fields
L	SITE	SWLK		Site: Walks and steps
L	SITE	TUNL		Site: Tunnels
L	SITE	WALK		Site: Walks and steps

INDUSTRIAL WASTE PIPING
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	ACID	EQPM			Acid, alkaline, and oil waste equipment
M	ACID	PIPE			Acid, alkaline, and oil waste piping
M	ACID	VENT			Acid, alkaline, and oil waste vent piping
ANTI-FREEZE
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	AFRZ	PIPE			Anti-freeze piping
M	AFRZ	WAST			Waste anti-freeze piping
ALIGNMENTS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	ALGN	DATA			Alignment coordinates and curve data
M	ALGN	LINE			Alignments
M	ALGN	STAT			Alignment stationing and tick marks
GENERAL INFORMATION
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	ANNO	DIMS			Witness/extension lines, dimension terminators, dimension text
M	ANNO	KEYN			Reference keynotes with associated leaders
M	ANNO	NOTE			General notes and general remarks
M	ANNO	NPLT			Non-plotting graphic information
M	ANNO	PATT			Miscellaneous patterning and hatching
M	ANNO	REFR			Reference files
M	ANNO	SYMB			Miscellaneous symbols
M	ANNO	TEXT			Miscellaneous text and callouts with associated leaders
BRINE SYSTEM
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	BRIN	EQPM			Brine system equipment
M	BRIN	PIPE			Brine system piping
CHEMICAL TREATMENT SYSTEM
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	CHEM	EQPM			Equipment
M	CHEM	PIPE			Piping (includes fittings, valves)
COMPRESSED AIR
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	CMPA	EQPM	AIRD		Air drain separator point
M	CMPA	EQPM	VALV		Valve
M	CMPA	EQPM	VLVP		Valve point
M	CMPA	FTTG			Fitting
M	CMPA	TANK			Tank
CONDENSER WATER SYSTEM
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	CNDS	PIPE			Condensate piping (includes fittings, valves)
M	CNDW	EQPM			Condenser water equipment
M	CNDW	PIPE			Condenser water piping
M	CONT	THER			Thermostats, controls, instrumentation, and sensors
M	CONT	WIRE			Low voltage wiring
CHILLED WATER SYSTEM
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	CWTR	EQPM			Equipment
M	CWTR	PIPE			Piping (includes fittings, valves)
DETAIL INFORMATION
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	DETL	ACCS			Accessories
M	DETL	BOIL			Boilers
M	DETL	CABS			Cabinets
M	DETL	COIL			Coils and fin tubes
M	DETL	DUCT			Ducts
M	DETL	EQPM			Equipment and fixtures
M	DETL	FANS			Fans
M	DETL	GENF			General features (miscellaneous items)
M	DETL	GRIL			Grilles and louvers
M	DETL	GRPH			Graphics, gridlines, non-text items
M	DETL	INPD			Inch-pound-specific dimensions and notes
M	DETL	INSL			Insulation and coverings
M	DETL	METR			Metric-specific dimensions and notes
M	DETL	MOTR			Motors
M	DETL	PIPE			Piping
M	DETL	PUMP			Pumps and compressors
M	DETL	STRC			Structural support features
M	DETL	TANK			Tanks
M	DETL	TRAP			Traps and drains
M	DETL	VALV			Valves and fittings
M	DETL	VENT			Vents
M	DETL	WIRE			Electrical wiring
DIAGRAM INFORMATION
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	DIAG	GRPH			Graphics, gridlines, non-text items
M	DIAG	INPD			Inch-pound-specific dimensions and notes
M	DIAG	METR			Metric-specific dimensions and notes
OTHER DISCIPLINE
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	DISC	INFO			Clearances and working space information
DUAL TEMPERATURE SYSTEM
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	DUAL	EQPM			Equipment
M	DUAL	PIPE			Piping (includes fittings, valves)
DUST AND FUME COLLECTION SYSTEMS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	DUST	DUCT			Dust and fume ductwork
M	DUST	EQPM			Dust and fume collection equipment
ELEVATIONS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	ELEV	FIXT			Miscellaneous fixtures
M	ELEV	IDEN			Component identification numbers
M	ELEV	OTLN			Building outlines
M	ELEV	PATT			Textures and hatch patterns
M	ELEV	PFIX			Plumbing fixtures
EXHAUST AIR SYSTEM
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	EXHS	CDFF			Exhaust air ceiling registers and grilles
M	EXHS	DUCT			Exhaust ductwork
M	EXHS	EQPM			Equipment
FLOOR INFORMATION
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	FLOR	IDEN			Room name, space identification text (copied from Architectural - Floor Plan model file)
M	FLOR	NUMB			Room/space identification number and symbol (copied from Architectural - Floor Plan model file)
GLYCOL SYSTEM
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	GLYC	CULV	LINE		Culvert line
M	GLYC	CULV	SITE		Culvert site
M	GLYC	DRAN	BASN		Deicing drainage basin
M	GLYC	DRAN	DDIV		Deicing drainage divide
M	GLYC	EQPM	COUT		Clean out
M	GLYC	EQPM	DISC		Discharge point
M	GLYC	EQPM	FLOW		Flow control point
M	GLYC	EQPM	INLT		inlet
M	GLYC	EQPM	LIFT		Lift station
M	GLYC	EQPM	PUMP		pump
M	GLYC	EQPM	VALV		Valve
M	GLYC	FTTG			Fitting
M	GLYC	JBOX			Junction
M	GLYC	RCOV			Recovery point
M	GLYC	RESV			Reservoir point
M	GLYC	SIGN			Marker
M	GLYC	STAT	PUMP		Pump station
M	GLYC	TANK			Tank
M	GLYC	VALT			Vault
GEOTHERMAL HEAT PUMP SYSTEM
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	GTHP	EQPM			Equipment
M	GTHP	PIPE			Piping (includes fittings, valves)
HIGH-TEMPERATURE / CHILLED WATER SYSTEM
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	HTCW	CHLP			Chilled water plant
M	HTCW	CHLS			Chilled water service piping
M	HTCW	DEVC			Rigid anchors, anchor guides, rectifiers, reducers, markers, meters, pumps, regulators, tanks, and valves
M	HTCW	FLOW			Flow direction arrows
M	HTCW	FTTG			Caps and flanges
M	HTCW	HTPL			Main high temperature piping
M	HTCW	HTPP			High temperature water plant
M	HTCW	HTPS			High temperature service piping
M	HTCW	IDEN			Identifier tags, symbol modifier, and text
M	HTCW	JBOX			Junction boxes, manholes, handholes, test boxes
M	HTCW	LTPL			Main low temperature piping
M	HTCW	LTPS			Low temperature service piping
M	HTCW	PIPE			Main chilled water piping
M	HTCW	PIPE			Main steam piping
M	HTCW	PIPE	A		Abandoned piping
M	HTCW	PITS			Valve pits/vaults, steam pits
M	HTCW	PLNT	IDEN		Identifier tags, symbol modifier, and text
M	HTCW	PUMP			Pump stations
M	HTCW	RETN			Return for all HTCW lines
M	HTCW	SERV			Steam service piping
M	HTCW	STNS	IDEN		Identifier tags, symbol modifier, and text
HVAC SYSTEM
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	HVAC	ACCS			Equipment access doors
M	HVAC	CDFF			Ceiling diffusers, registers, and grilles
M	HVAC	DMPR			Fire and smoke dampers
M	HVAC	EQPM			Air system equipment
M	HVAC	EQPM	ANCH		Anchor point
M	HVAC	EQPM	ANOD		Anode
M	HVAC	EQPM	PUMP		Pump
M	HVAC	EQPM	RECT		Rectifier
M	HVAC	EQPM	REGL		Regulator
M	HVAC	EQPM	TEST		Anode test station
M	HVAC	EQPM	VALV		Valve
M	HVAC	FDFF			Floor diffusers, registers, and grilles
M	HVAC	FTTG			Fitting
M	HVAC	IDEN			Duct sizes
M	HVAC	JBOX			Junction
M	HVAC	METR			Meters
M	HVAC	RETN			Return ductwork
M	HVAC	ROOF			Roof mounted HVAC equipment
M	HVAC	SIGN			Marker
M	HVAC	SPLY			Supply ductwork
M	HVAC	TAGS			Diffuser/register/grille tags and air flow arrows
M	HVAC	WDFF			Wall diffusers, registers, and grilles
HOT WATER HEATING SYSTEM
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	HWTR	EQPM			Equipment
M	HWTR	PIPE			Piping (includes fittings, valves)
HYDRAULIC SYSTEMS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	HYDR	EQPM			Hydraulic system equipment
M	HYDR	PIPE			Hydraulic system piping
INSULATING (TRANSFORMER) OIL SYSTEM
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	INSL	EQPM			Insulating oil equipment
M	INSL	PIPE			Insulating oil piping
LUBRICATION OIL
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	LO~~	EQPM			Lubrication oil equipment
M	LO~~	PIPE			Lubrication oil piping
MACHINE DESIGN
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	MACH	BASE			Machinery bases
M	MACH	COMP			Miscellaneous machinery parts and components
M	MACH	CRAN			Bridge cranes, jib cranes, and monorails
M	MACH	CRAN			Bridge cranes, jib cranes, and monorails
M	MACH	E			Existing machinery
M	MACH	FSTN			Fasteners, nuts, and bolts
M	MACH	HOIS			Hoists and hooks
M	MACH	LIFT			Miscellaneous lifting equipment
M	MACH	LROT			Large rotating machinery (turbine and pump outlines)
M	MACH	MOTR			Machinery motors
PENETRATIONS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	PENE	FLOR			Floor penetrations
M	PENE	ROOF			Roof penetrations
PROCESS PIPING
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	PROC	EQPM			Equipment
M	PROC	PIPE			Process piping
ENERGY RECOVERY SYSTEMS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	RCOV	EQPM			Equipment
M	RCOV	PIPE			Piping (includes fittings, valves)
REFRIGERATION SYSTEMS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	REFG	EQPM			Equipment
M	REFG	PIPE			Piping (includes fittings, valves)
RAW WATER PIPING
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	RWTR	EQPM			Raw water equipment
M	RWTR	PIPE			Raw water piping
SECTIONS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	SECT	IDEN			Component identification numbers
M	SECT	MBND			Material beyond section cut
M	SECT	MCUT			Material cut by section
M	SECT	PATT			Textures and hatch patterns
STEAM SYSTEM
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
M	STEM	EQPM			Equipment
M	STEM	PIPE			Steam piping

Discipline	Major	Minor1	Layer Description
GENERAL INFORMATION
P	ANNO	DIMS	Witness/extension lines, dimension terminators, dimension text
P	ANNO	KEYN	Reference keynotes with associated leaders
P	ANNO	NOTE	General notes and general remarks
P	ANNO	NPLT	Non-plotting graphic information
P	ANNO	PATT	Miscellaneous patterning and hatching
P	ANNO	REFR	Reference files
P	ANNO	SYMB	Miscellaneous symbols
P	ANNO	TEXT	Miscellaneous text and callouts with associated leaders
COMPRESSED AIR
P	CMPA	EQPM	Equipment
P	CMPA	PIPE	Piping
DETAIL INFORMATION
P	DETL	GRPH	Graphics, gridlines, non-text items
P	DETL	INPD	Inch-pound-specific dimensions and notes
P	DETL	METR	Metric-specific dimensions and notes
DIAGRAM INFORMATION
P	DIAG	GRPH	Graphics, gridlines, non-text items
P	DIAG	INPD	Inch-pound-specific dimensions and notes
P	DIAG	METR	Metric-specific dimensions and notes
OTHER DISCIPLINE
P	DISC	INFO	Information and notes for other disciplines
DOMESTIC WATER
P	DOMW	ACCS	Equipment access doors
P	DOMW	CPIP	Domestic cold water piping
P	DOMW	EQPM	Hot and cold water equipment
P	DOMW	FPIP	Domestic filtered water piping
P	DOMW	HPIP	Domestic hot water piping
P	DOMW	RISR	Domestic hot and cold water risers
P	DOMW	RPIP	Domestic hot water recirculation piping
FLOOR INFORMATION
P	FLOR	IDEN	Room name, space identification text (copied from Architectural - Floor Plan model file)
P	FLOR	NUMB	Room/space identification number and symbol (copied from Architectural - Floor Plan model file)
LIQUID FUEL
P	FUEL	EQPM	Equipment
P	FUEL	FGAS	Fuel gas piping
P	FUEL	FOIL	Fuel oil piping
P	FUEL	NGAS	Natural gas piping
LIQUID GAS
P	LGAS	EQPM	Equipment
P	LGAS	PIPE	Piping
MEDICAL / DENTAL GAS
P	MDGS	EQPM	Medical/Dental Gas Equipment
P	MDGS	PIPE	Medical/Dental Gas Piping
PENETRATIONS
P	PENE	FLOR	Floor penetrations
P	PENE	ROOF	Roof penetrations
SANITARY DRAINAGE
P	SSWR	CNDS	Sanitary Condensate piping
P	SSWR	EQPM	Sanitary Equipment (e.g., sand/oil/water separators)
P	SSWR	FIXT	Sanitary Plumbing fixtures
P	SSWR	FLDR	Sanitary Floor drains, sinks, and cleanouts
P	SSWR	PIPE	Sanitary Piping
P	SSWR	RISR	Sanitary risers
P	SSWR	VENT	Sanitary Vent piping
STORM DRAINAGE SYSTEM
P	STRM	PIPE	Storm drain piping
P	STRM	RFDR	Roof drains
P	STRM	RISR	Storm drain risers

Discipline	Major	Minor1	Description
GENERAL INFORMATION
S	ANNO	DIMS	Witness/extension lines, dimension terminators, dimension text, welding symbols
S	ANNO	KEYN	Reference keynotes with associated leaders
S	ANNO	NOTE	General notes and general remarks
S	ANNO	NPLT	Non-plotting graphic information
S	ANNO	PATT	Miscellaneous patterning and hatching
S	ANNO	REFR	Reference files (AutoCAD users only, see Chapter 4)
S	ANNO	SYMB	Reference bubbles, matchlines and breaklines
S	ANNO	TEXT	Miscellaneous text and callouts with associated leaders
BEAMS
S	BEAM	CNTR	Beam centerlines
S	BEAM	PRIM	Primary beams, girders
S	BEAM	SECD	Secondary beams, girders
BRACING
S	BRAC	LATL	Lateral bracing
S	BRAC	SHEA	Shear walls
S	BRAC	VERT	Vertical bracing
COLUMNS
S	COLS	CNTR	Column centerlines/working lines
S	COLS	MSC1	Miscellaneous columns (Type 1)
S	COLS	MSC2	Miscellaneous columns (Type 2)
S	COLS	MSC3	Miscellaneous columns (Type 3)
S	COLS	MSC4	Miscellaneous columns (Type 4)
S	COLS	PRIM	Primary columns
S	COLS	SCND	Secondary columns
DECKING
S	DECK	FLOR	Floor deck
S	DECK	OPEN	Openings and penetrations
S	DECK	RBAR	Deck/slab reinforcing
S	DECK	ROOF	Roof deck
DETAIL INFORMATION
S	DETL	GRPH	Graphics, gridlines, non-text items
S	DETL	INPD	Inch-pound-specific dimensions and notes
S	DETL	METR	Metric-specific dimensions and notes
FEATURES
S	FEAT	CMUW	CMU outline (no patterning)
S	FEAT	CNTR	Feature centerlines
S	FEAT	CONC	Concrete outline (no patterning)
S	FEAT	GENL	General features (miscellaneous items)
S	FEAT	WOOD	Wood outline (no patterning)
FOUNDATIONS
S	FNDN	CNTR	Beam centerlines
S	FNDN	FTNG	Footings
S	FNDN	GRBM	Grade beams
S	FNDN	PEDS	Column pedestals
S	FNDN	PILE	Piles (steel sheet, concrete, wood), piers, caisson piers, drilled piers
S	FNDN	RBAR	Foundation reinforcing
GRATING
S	GRAT	ELEV	Elevated grating (catwalks)
S	GRAT	FLOR	Floor grating
S	GRAT	SUBS	Subsurface grating
GRADE LINES
S	GRDL	EXGL	Existing ground
S	GRDL	FNGR	Finished grade
S	GRDL	WATR	Water surface
GRIDS
S	GRID	HORZ	Primary grid lines (horizontal)
S	GRID	IDEN	Column I.D. tags
S	GRID	MSC_	Miscellaneous grid lines (Type 1)
S	GRID	MSC2	Miscellaneous grid lines (Type 2)
S	GRID	MSC3	Miscellaneous grid lines (Type 3)
S	GRID	MSC4	Miscellaneous grid lines (Type 4)
S	GRID	VERT	Primary grid lines (vertical)
S	GRID	WATR	Water surface
JOINTS
S	JOIN	CNST	Construction joints
S	JOIN	CTRL	Control/expansion joints
JOISTS
S	JOIS	BRDG	Bridging
S	JOIS	PRIM	Primary joists
S	JOIS	SECD	Secondary joists
METAL
S	METL	MISC	Miscellaneous metal
OPENINGS
S	OPEN	MISC	Openings and penetrations
PADS
S	PADS	EQPM	Equipment pads
PIPING
S	PIPE	GATE	Gates (flap gates, sluice gates, other)
S	PIPE	MISC	Miscellaneous piping/culverts
S	PIPE	TRSH	Trash racks
REINFORCEMENT
S	REIN	RBAR	Rebar, welded wire mesh
SAFETY FEATURES
S	SAFE	FENC	Fencing
S	SAFE	HRAL	Handrails
SECTIONS
S	SECT	CMUW	CMU outline (no patterning)
S	SECT	CNTR	Centerlines
S	SECT	CONC	Concrete outline (no patterning)
S	SECT	FNGR	Finished grade
S	SECT	GENF	General features (miscellaneous items)
S	SECT	JOIN	Joint materials (e.g., felt), vapor barrier, other
S	SECT	MISC	Miscellaneous fasteners, anchor bolts, supports
S	SECT	PRIM	Primary beams/girders outlines
S	SECT	RBAR	Rebar, welded wire mesh
S	SECT	SHPS	Miscellaneous shapes, plates
S	SECT	STLS	Wide flange shapes, plates, open web joists, decking
S	SECT	WOOD	Wood outline (no patterning)
SLABS
S	SLAB	EDGE	Edge of slab
S	SLAB	OPEN	Openings and penetrations
S	SLAB	RBAR	Slab reinforcing
SUPPORTS
S	SPPT	MISC	Miscellaneous fasteners, anchor bolts, supports
S	SPPT	SHPS	Miscellaneous shapes, plates
STAIRWAYS
S	STRS	FRAM	Stair/elevator framing
S	STRS	LADD	Ladders, ladder handrails, safety guard, grab bars
S	STRS	RBAR	Stair reinforcing
TRUSSES
S	TRUS	PRIM	Primary trusses
S	TRUS	SECD	Secondary trusses
WALLS
S	WALL	CONC	Concrete walls
S	WALL	HBAR	Horizontal/secondary reinforcement
S	WALL	LOAD	Load bearing CMU walls
S	WALL	NONL	Non-load bearing CMU walls
S	WALL	OPEN	Openings and penetrations
S	WALL	OTLN	Wall outline
S	WALL	PCST	Precast walls
S	WALL	RBAR	Wall reinforcing
S	WALL	STUD	Stud walls
S	WALL	VBAR	Vertical/primary reinforcement

Discipline	Major	Minor1	Minor2	Status	Description
ALARM SYSTEMS
T	ALRM	EQPM	SERT		Security Alarm Equipment
T	ALRM	IDEN			Identifier tags, symbol modifier, and text
T	ALRM	SYST			Miscellaneous alarm system symbols
GENERAL INFORMATION
T	ANNO	DIMS			Witness/extension lines, dimension terminators, dimension text
T	ANNO	KEYN			Reference keynotes with associated leaders
T	ANNO	NOTE			General notes and general remarks
T	ANNO	NPLT			Non-plotting graphic information
T	ANNO	PATT			Miscellaneous patterning and hatching
T	ANNO	REFR			Reference files (AutoCAD users only, see Chapter 4)
T	ANNO	SYMB			Miscellaneous symbols
T	ANNO	TEXT			Miscellaneous text and callouts with associated leaders
CABLE SYSTEMS
T	CABL	ANTN		`	Comm Antenna
T	CABL	COAX			Coax cable
T	CABL	FIBR			Fiber optics cable
T	CABL	IDEN			Cable identifiers
T	CABL	MULT			Multi-conductor cable
T	CABL	TRAY			Cable trays and wireways
CLOCK SYSTEMS
T	CLOK	IDEN			Identifier tags, symbol modifier, and text
T	CLOK	SYST			Clock system symbols
COMMUNICATIONS
T	COMM	ANTN			Telecommunications antennae
T	COMM	APSY			Audio paging system
T	COMM	ATMS			Advanced traffic management system
T	COMM	AVID			Automatic vehicle identification system
T	COMM	BIDS			Baggage information display system
T	COMM	FIDS			Flight information display system
T	COMM	GIDS			Gate information display system
T	COMM	JBOX			Junction boxes
T	COMM	PMRC			Parking management and revenue control
T	COMM	VPSY			Visual paging system
DIAGRAM INFORMATION
T	DIAG	GRPH			Graphics, gridlines, non-text items
T	DIAG	IDEN			Identifier tags, symbol modifier and text
T	DIAG	INPD			Inch-pound-specific dimensions and notes
T	DIAG	METR			Metric-specific dimensions and notes
OTHER DISCIPLINE INFORMATION
T	DISC	INFO			Information and notes for other disciplines
EQUIPMENT
T	EQPM	COMB			Distribution equipment for both copper and fiber optics
T	EQPM	COPP			Distribution equipment for copper
T	EQPM	FIBR			Distribution equipment for fiber optic
T	EQPM	OTHR			Other telecommunications equipment
T	EQPM	RELA			Relays, resistors, capacitors, and inducers
FLOOR INFORMATION
T	FLOR	IDEN			Room name, space identification text (copied from Architectural - Floor Plan model file)
T	FLOR	NUMB			Room/space identification number and symbol (copied from Architectural - Floor Plan model file)
JACKS
T	JACK	COMB			Combination telephone and data/LAN jacks
T	JACK	DATA			Data/LAN jacks
T	JACK	IDEN			Identifier tags, symbol modifier, and text
T	JACK	PHON			Telephone jacks
NURSE CALL SYSTEMS
T	NURS	IDEN			Identifier tags, symbol modifier, and text
T	NURS	SYST			Nurse call system symbols
SOUND SYSTEMS
T	SOUN	IDEN			Identifier tags, symbol modifier, and text
T	SOUN	SYST			Sound system symbols

AERIAL SURVEY
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	AERI	BNDY			Aerial Survey: Aerial photography boundaries
V	AERI	INDX			Aerial Survey: Aerial photo index
V	AERI	PATH			Aerial Survey: Aerial flight lines/paths
AIRFIELDS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	AFLD	BCNS	IDEN		Airfield: Identifier tags, symbol modifiers, and text
V	AFLD	BCNS	MISC		Airfield: Miscellaneous navaids-windcones and beacons
V	AFLD	BCNS	STRB		Airfield: Strobe beacons
V	AFLD	CIRC	CTRL		Airfield: Control and monitoring circuits
V	AFLD	CIRC	IDEN		Airfield: Circuit identifier tags, symbol modifier, and text
V	AFLD	CIRC	MULT		Airfield: Multiple circuits
V	AFLD	CIRC	SERS		Airfield: Series circuits
V	AFLD	DEVC			Airfield: Capacitors, voltage regulators, motors, buses, generators, meters, grounds, and markers
V	AFLD	DUCT			Airfield: Ductbanks
V	AFLD	IDEN			Airfield: Airfield annotation
V	AFLD	JBOX			Airfield: Junction boxes, pull boxes, manholes, handholes, pedestals, splices
V	AFLD	LITE	APPR		Airfield: Approach lights
V	AFLD	LITE	DIST		Airfield: Distance and arresting gear markers
V	AFLD	LITE	LANE		Airfield: Hoverlane, taxilane and helipad lights
V	AFLD	LITE	OBST		Airfield: Obstruction lights
V	AFLD	LITE	RUNW		Airfield: Runway lights
V	AFLD	LITE	SIGN		Airfield: Taxiway guidance signs
V	AFLD	LITE	TAXI		Airfield: Taxiway lights
V	AFLD	LITE	THRS		Airfield: Threshold lights
V	AFLD	VALT			Airfield: Airfield lighting vaults
ALIGNMENTS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	ALGN	DATA			Alignments: Alignment coordinates and curve data
V	ALGN	LINE			Alignments: Alignments
V	ALGN	MRKG			Alignments: Markings
V	ALGN	PROF			Profiles: Existing Grade
V	ALGN	STAT			Alignments: Stationing and tick marks
GENERAL INFORMATION
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	ANNO	ANOD			Survey Annotation: Survey Annotation: Anode
V	ANNO	ANOD	TEXT		Survey Annotation: Anode Text
V	ANNO	DIMS			Survey Annotation: Witness/extension lines, dimension terminators, dimension text
V	ANNO	KEYN			Survey Annotation: Reference keynotes with associated leaders
V	ANNO	NOTE			Survey Annotation: General notes and general remarks
V	ANNO	NPLT			Survey Annotation: Non-plotting graphic information
V	ANNO	PATT			Survey Annotation: Miscellaneous patterning and hatching
V	ANNO	REFR			Survey Annotation: Reference files (AutoCAD users only, see Chapter 4)
V	ANNO	SYMB			Survey Annotation: Miscellaneous symbols
V	ANNO	TEXT			Survey Annotation: Miscellaneous text and callouts with associated leaders
BUILDINGS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	BLDG	IDEN			Buildings: Identification Annotation
V	BLDG	OTLN			Buildings: Buildings and other structures outline
V	BLDG	OVHD			Buildings: Overhangs
CATHODIC PROTECTION SYSTEMS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	CATH	ANOD			Cathodic Protection System: Sacrificial anode system
V	CATH	CURR			Cathodic Protection System: Impress current system
V	CATH	IDEN			Cathodic Protection System: Identifier tags, symbol modifier, and text
V	CATH	TEST			Cathodic Protection System: Test stations
CHANNELS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	CHAN	CNTR			Channels: Centerlines and survey report lines
V	CHAN	CNTR	IDEN		Channels: Centerline Annotation
V	CHAN	DACL			Channels: De-authorized channel limits, anchorages, etc.
V	CHAN	DACL	IDEN		Channels: De-authorized channel limit annotation
V	CHAN	IDEN			Channels: Identification Annotation
V	CHAN	LIMT			Channels: Channel limits, anchorages, turning basins, disposal areas, etc.
V	CHAN	NAID			Channels: Navigation aids and text
CIRCUITS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	CIRC	CTRL			Circuits: Control and monitoring circuits
V	CIRC	IDEN			Circuits: Identifier tags, symbol modifier, and text
V	CIRC	MULT			Circuits: Multiple circuits
V	CIRC	SERS			Circuits: Series circuits
COMMUNICATIONS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	COMM	EQPM			Communications: Other communications distribution equipment
V	COMM	JBOX			Communications: Junction boxes, pull boxes, manholes, handholes, pedestals, splices
V	COMM	OVHD			Communications: Overhead communications/telephone lines
V	COMM	OVHD	IDEN		Communications: Identifier tags, symbol modifier and text
V	COMM	UGND			Communications: Underground communications/telephone lines
V	COMM	UGND	IDEN		Communications: Identifier tags, symbol modifier and text
V	COMM	VALT			Communications: Vault
CONTROL
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	CTRL	ANOD			Control: Anode
V	CTRL	ANOD	KNOW		Control: Known Anode
V	CTRL	ANOD	UNKN		Control: Unknown Anode
V	CTRL	BMRK			Control: Benchmarks
V	CTRL	GRID			Control: Grid
V	CTRL	HORZ			Control: Horizontal control points
V	CTRL	IDEN			Control: Control point annotation
V	CTRL	LINE	DIRC		Control: Traverse Lines
V	CTRL	LINE	NETW		Control: Traverse Network
V	CTRL	LINE	SHOT		Control: Traverse Sideshot
V	CTRL	TEXT			Control: Annotation
V	CTRL	TRAV			Control: Traverse points
V	CTRL	TRAV	ERRO		Control: Error Ellipses
V	CTRL	VERT			Control: Vertical control points
DOMESTIC WATER
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	DOMW	ANOD			Domestic Water: Anode
V	DOMW	DEVC			Domestic Water: Connectors, faucets, reducers, regulators, vents, intake points, tanks, taps, backflow preventers, and valves
V	DOMW	FIRE			Domestic Water: Fire lines
V	DOMW	FTTG			Domestic Water: Caps, cleanouts, crosses, and tees
V	DOMW	HYDR			Domestic Water: Hydrants
V	DOMW	IDEN			Domestic Water: Identifier tags, symbol modifier, and text
V	DOMW	METR			Domestic Water: Meters
V	DOMW	NHYD			Domestic Water: Non-potable hydrants/flushing hydrants
V	DOMW	NPW~			Domestic Water: Non-potable water piping
V	DOMW	PIPE			Domestic Water: Main domestic water piping
V	DOMW	PIPE	A		Domestic Water: Abandoned piping
V	DOMW	PITS	IDEN		Domestic Water: Identifier tags, symbol modifier, and text
V	DOMW	PUMP			Domestic Water: Booster pump stations
V	DOMW	REDC			Domestic Water: Pressure reducing stations
V	DOMW	RSVR			Domestic Water: Reservoirs
V	DOMW	RSVR	IDEN		Domestic Water: Identifier tags, symbol modifier, and text
V	DOMW	SERV			Domestic Water: Service piping
V	DOMW	SIGN			Domestic Water: Surface markers/signs
V	DOMW	STNS	IDEN		Domestic Water: Identifier tags, symbol modifier, and text
V	DOMW	TANK			Domestic Water: Water storage tanks
V	DOMW	VALV			Domestic Water: Valve pits/vaults
V	DOMW	VENT			Domestic Water: Vent pits
V	DOMW	WELL			Domestic Water: Water well houses
DITCHES
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	DTCH	BOTM			Ditches: Bottom of ditch
V	DTCH	CNTR			Ditches: Centerline of ditch
V	DTCH	EWAT			Ditches: Edge of water
V	DTCH	IDEN			Ditches: Ditch annotation
V	DTCH	TOP~			Ditches: Top of ditch
DUCTBANKS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	DUCT	MULT			Ductbanks: Ductbank
V	DUCT	MULT	IDEN		Ductbanks: Identifier tags, symbol modifier and text
ELECTRICAL
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	ELEC				Utilities: Power lines, lights, telephone poles, communication lines
V	ELEC	DEVC			Electrical: Capacitors, voltage regulators, motors, buses, generators, meters, grounds, and markers
V	ELEC	IDEN			Utilities: Power/communication annotation
V	ELEC	JBOX			Electrical: Junction boxes, pull boxes, manholes, handholes, pedestals, splices
V	ELEC	SUBS			Electrical: Other substation equipment
V	ELEC	SWCH			Electrical: Fuse cutouts, pole mounted switches, circuit breakers, gang operated disconnects, reclosers, cubicle switches
V	ELEC	VALT			Electrical: Vaults
LIQUID FUEL
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	FUEL	DEFL			Liquid Fuel: Defueling piping
V	FUEL	DEVC			Liquid Fuel: Air eliminators, filter strainers, hydrant fill points, line vents, markers, oil/water separators, reducers, regulators, and valves
V	FUEL	FLOW			Liquid Fuel: Flow direction arrows
V	FUEL	FTTG			Liquid Fuel: Caps, crosses, and tees
V	FUEL	HYDR			Liquid Fuel: Hydrant control pits
V	FUEL	IDEN			Liquid Fuel: Identifier tags, symbol modifier, and text
V	FUEL	JBOX			Liquid Fuel: Junction boxes, manholes, handholes, test boxes
V	FUEL	METR			Liquid Fuel: Meters
V	FUEL	PIPE			Liquid Fuel: Main fuel piping
V	FUEL	PIPE	A		Liquid Fuel: Abandoned piping
V	FUEL	PITS	IDEN		Liquid Fuel: Identifier tags, symbol modifier, and text
V	FUEL	PUMP			Liquid Fuel: Booster pump stations
V	FUEL	SERV			Liquid Fuel: Service piping
V	FUEL	STNS	IDEN		Liquid Fuel: Identifier tags, symbol modifier, and text
V	FUEL	TANK			Liquid Fuel: Fuel tanks
V	FUEL	TRCH			Liquid Fuel: Fuel line trench
V	FUEL	VALV			Liquid Fuel: Valve pits
V	FUEL	VENT			Liquid Fuel: Vent pits
GRADE LINEWORK
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	GRAD	E			Grade Linework: Existing grade, ground line
V	GRAD	FNSH			Grade Linework: Finished grade
V	GRAD	FRAM			Grade Linework: Frame
V	GRAD	GRID	MAJR		Grade Linework: Major grid lines
V	GRAD	GRID	MINR		Grade Linework: Minor grid lines
V	GRAD	TEXT			Grade Linework: Border text, annotation
GRID LINEWORK
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	GRID	FRAM			Grade Linework: Frame
V	GRID	MAJR			Grade Linework: Major grid lines
V	GRID	MINR			Grade Linework: Minor grid lines
V	GTHP	EQPM			Geothermal: Equipment
V	GTHP	PIPE			Geothermal: Piping (includes fittings, valves)
HIGH-TEMPERATURE / CHILLED WATER
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	HTCW	CHLP			HTCW: Chilled water plant
V	HTCW	DEVC			HTCW: Rigid anchors, anchor guides, rectifiers, reducers, markers, meters, pumps, regulators, tanks, and valves
V	HTCW	FLOW			HTCW: Flow direction arrows
V	HTCW	FTTG			HTCW: Caps and flanges
V	HTCW	HTPL			HTCW: Main high temperature piping
V	HTCW	HTPP			HTCW: High temperature water plant
V	HTCW	HTPS			HTCW: High temperature service piping
V	HTCW	IDEN			HTCW: Identifier tags, symbol modifier, and text
V	HTCW	JBOX			HTCW: Junction boxes, manholes, handholes, test boxes
V	HTCW	LTPL			HTCW: Main low temperature piping
V	HTCW	LTPS			HTCW: Low temperature service piping
V	HTCW	PIPE			HTCW: Main chilled water piping
V	HTCW	PIPE	A		HTCW: Abandoned piping
V	HTCW	PITS			HTCW: Valve pits/vaults, steam pits
V	HTCW	PLNT	IDEN		HTCW: Identifier tags, symbol modifier, and text
V	HTCW	PUMP			HTCW: Pump stations
V	HTCW	RETN			HTCW: Return for all HTCW lines
V	HTCW	SERV			HTCW: Chilled water service piping
V	HTCW	STEM	PIPE		HTCW: Main steam piping
V	HTCW	STEM	SERV		HTCW: Steam service piping
V	HTCW	STNS	IDEN		HTCW: Identifier tags, symbol modifier, and text
INDUSTRIAL WASTE
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	IW~~	DEVC			Industrial Waste: Grit chambers, meters, flumes, neutralizers, oil/water separators, ejectors, tanks, and valves
V	IW~~	FLOW			Industrial Waste: Flow direction arrows
V	IW~~	FTTG			Industrial Waste: Caps and cleanouts
V	IW~~	IDEN			Industrial Waste: Identifier tags, symbol modifier, and text
V	IW~~	JBOX			Industrial Waste: Junction boxes and manholes
V	IW~~	LAGN			Industrial Waste: Lagoons
V	IW~~	LIFT			Industrial Waste: Lift stations
V	IW~~	PIPE			Industrial Waste: Main industrial waste water piping
V	IW~~	PIPE	A		Industrial Waste: Abandoned piping
V	IW~~	PLNT			Industrial Waste: Treatment plants
V	IW~~	RSVR	IDEN		Industrial Waste: Identifier tags, symbol modifier, and text
V	IW~~	SERV			Industrial Waste: Industrial waste water service piping
V	IW~~	SIGN			Industrial Waste: Surface markers/signs
V	IW~~	STNS	IDEN		Industrial Waste: Identifier tags, symbol modifier, and text
LIGHTING
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	LITE	APPR			Lights: Approach lights
V	LITE	DIST			Lights: Distance and arresting gear markers
V	LITE	FIXT			Lights: Exterior Lights
V	LITE	FIXT	IDEN		Lights: Identifier tags, symbol modifier, and text
V	LITE	LANE			Lights: Hoverlane, taxilane, and helipad lights
V	LITE	OBST			Lights: Obstruction lights
V	LITE	RUNW			Lights: Runway lights
V	LITE	RUNW	CNTR		Lights: Runway Centerline lights
V	LITE	RUNW	TDZN		Lights: Runway Touchdown Zone lights
V	LITE	SIGN			Lights: Taxiway guidance signs
V	LITE	TAXI			Lights: Taxiway lights
V	LITE	THRS			Lights: Threshold lights
NATURAL GAS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	NGAS				Utilities: Gas lines, features, and valves
V	NGAS	ANOD			Natural Gas: Anode
V	NGAS	DEVC			Natural Gas: Hydrant fill points, lights, vents, markers, rectifiers, reducers, regulators, sources, tanks, drip pots, taps, and valves
V	NGAS	DEVC	IDEN		Natural Gas: Identifier tags, symbol modifier, and text
V	NGAS	FLOW			Natural Gas: Flow direction arrows
V	NGAS	FTTG			Natural Gas: Caps, crosses, and tees
V	NGAS	IDEN			Natural Gas: Identifier tags, symbol modifier, and text
V	NGAS	METR			Natural Gas: Meters
V	NGAS	PIPE			Natural Gas: Main natural gas piping
V	NGAS	PIPE	A		Natural Gas: Abandoned piping
V	NGAS	PITS	IDEN		Natural Gas: Identifier tags, symbol modifier, and text
V	NGAS	PUMP			Natural Gas: Compressor stations
V	NGAS	REDC			Natural Gas: Reducing stations
V	NGAS	SERV			Natural Gas: Service piping
V	NGAS	SIGN			Natural Gas: Surface markers/signs
V	NGAS	STNS	IDEN		Natural Gas: Identifier tags, symbol modifier, and text
V	NGAS	VALV			Natural Gas: Valve pits/boxes
V	NGAS	VENT			Natural Gas: Vent pits
POLES
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	POLE	ANOD			Poles: Anode
V	POLE	GUYP			Poles: Guying equipment
V	POLE	GUYP	IDEN		Poles: Guying equipment identifier tags, symbol modifiers, and text
V	POLE	IDEN			Poles: Utility pole identifier tags, symbol modifier, and text
V	POLE	UTIL			Poles: Utility poles
POWER
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	POWR	XFMR	PADM		Power: Pad mounted transformers
V	POWR	XFMR	POLM		Power: Pole mounted transformers
PRIMARY ELECTRICAL CABLES
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	PRIM	OVHD			Primary Electrical Cables: Overhead electrical utility lines
V	PRIM	OVHD	IDEN		Primary Electrical Cables: Identifier tags, symbol modifier, and text
V	PRIM	UGND			Primary Electrical Cables: Underground electrical utility lines
V	PRIM	UGND	IDEN		Primary Electrical Cables: Identifier tags, symbol modifier, and text
PROFILES
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	PROF	CUTS	IDEN		Profiles: Existing grade and grading cuts - annotation
V	PROF	FILL			Profiles: New work, grading fills
V	PROF	INLT			Profiles: Curb and surface inlets, catch basins
V	PROF	MHOL			Profiles: Manholes
V	PROF	PIPE			Profiles: Piping
V	PROF	ROAD			Profiles: Roads
PROPERTY
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	PROP	AFLD	LINE		Cadastral: Airport Parcel
V	PROP	ANOD			Property: Anode
V	PROP	BRNG			Property: Bearings and distance labels
V	PROP	CNTY			Property: County Boundary
V	PROP	ESMT			Property: Government easements/property lines
V	PROP	IDEN			Property: Identification Annotation
V	PROP	LEAS			Property: Lease line (surveyed)
V	PROP	LINE			Property: Property lines (Existing recorded plats)
V	PROP	LUSE			Property: Land Use Area
V	PROP	MUNI			Property: Municipal Boundary
V	PROP	QTRS			Property: Quarter lines
V	PROP	RWAY			Property: Right of ways
V	PROP	SECT			Property: Section lines
V	PROP	STAT			Property: State Boundary
V	PROP	SXTS			Property: Sixteenth lines (40 lines)
V	PROP	TEXT			Property: Annotation
V	PROP	ZONE			Property: Zoning Areas
PAVEMENT
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	PVMT	IDEN			Pavement: Road, parking lot, railroad, airfield pavement annotation
V	PVMT	MRKG			Pavement: Pavement markings
V	PVMT	PATT			Pavement: Joint patterns, text and dimensions
V	PVMT	ROAD			Pavement: Roads, parking lots, railroads, airfield pavements
ROADS, STREETS, HIGHWAYS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	ROAD	ASPH			Roadways: Road outlines-asphalt surface
V	ROAD	CNTR			Roadways: Road centerlines
V	ROAD	CONC			Roadways: Road outlines-concrete surface
V	ROAD	CURB			Roadways: Curbs and gutters
V	ROAD	GRAL			Roadways: Guard rails
V	ROAD	GRVL			Roadways: Road outlines-gravel surface
V	ROAD	IDEN			Roadways: Road, street, highway annotation
V	ROAD	MRKG			Roadways: Pavement markings
V	ROAD	OTLN			Roadways: Road outlines
V	ROAD	PATT			Roadways: Joint patterns, text and dimensions
V	ROAD	SHLD			Roadways: Roadway shoulders
V	ROAD	SIGN			Roadways: Signs
V	ROAD	UPVD			Roadways: Road outlines-unpaved surface
RUNWAYS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	RUNW	BLST	MRKG		Runways: Blast pad markings
V	RUNW	CNTR			Runways: Centerlines
V	RUNW	CNTR	MRKG		Runways: Centerline markings
V	RUNW	DIST	MRKG		Runways: Fixed distance markings
V	RUNW	DSPL	MRKG		Runways: Displaced threshold markings
V	RUNW	EDGE	MRKG		Runways: Edge markings
V	RUNW	IDEN	MRKG		Runways: Runway identifier markings
V	RUNW	SHLD	MRKG		Runways: Shoulder markings
V	RUNW	TDZM	MRKG		Runways: Touchdown zone markers
V	RUNW	THRS	MRKG		Runways: Threshold markers
SECONDARY ELECTRICAL CABLE
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	SECD	OVHD			Secondary Electrical Cables: Overhead electrical utility lines
V	SECD	OVHD	IDEN		Secondary Electrical Cables: Identifier tags, symbol modifier, and text
V	SECD	UGND			Secondary Electrical Cables: Underground electrical utility lines
V	SECD	UGND	IDEN		Secondary Electrical Cables: Identifier tags, symbol modifier, and text
SECTIONS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	SECT	IDEN			Sections: Component identification numbers
V	SECT	MBND			Sections: Material beyond section cut
V	SECT	MCUT			Sections: Material cut by section
V	SECT	PATT			Sections: Textures and hatch patterns
SITE FEATURES
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	SITE	EROS			Site: Riprap, revetments/stone protection, breakwaters, dikes, jetties, and drains
V	SITE	EWAT			Site: Water features
V	SITE	FENC			Site: Fences and handrails
V	SITE	FENC	IDEN		Site: Fence, handrail, ramp, and trail annotation
V	SITE	IDEN			Site: Existing site feature/structure annotation
V	SITE	OTLN			Site: Existing site features (play structures, bike racks, benches, recreational equipment)
V	SITE	SIGN			Site: Signage
V	SITE	STRC			Site: Structures (bridges, sheds, foundation pads, footings, etc.)
V	SITE	STRS			Site: Stairs and ramps
V	SITE	VEGE			Site: Existing treelines and vegetation
V	SITE	VEGE	ANOD		Site: Treelines and Vegetation Anode
V	SITE	WALK			Site: Walks, trails, and bicycle paths
V	SITE	WATR			Site: Water features
SPECIAL SYSTEMS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	SPCL	IDEN			Special Systems: (UMCS, EMCS, CATV, etc.) identifier tags, symbol modifier, and text
V	SPCL	SYST			Special Systems: (UMCS, EMCS, CATV, etc.)
V	SPCL	TRAF			Special Systems: Traffic signal system
V	SPCL	TRAF	IDEN		Special Systems: Traffic signal identifier tags, symbol modifier, and text
SANITARY SEWER
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	SSWR				Utilities: Sanitary lines and manholes
V	SSWR	ANOD			Sanitary Sewer: Anode
V	SSWR	DEVC			Sanitary Sewer: Grease traps, grit chambers, flumes, neutralizers, oil/water separators, ejectors, and valves
V	SSWR	DEVC	IDEN		Sanitary Sewer: Identifier tags, symbol modifier, and text
V	SSWR	FILT			Sanitary Sewer: Filtration beds
V	SSWR	FILT	IDEN		Sanitary Sewer: Identifier tags, symbol modifier, and text
V	SSWR	FLOW			Sanitary Sewer: Flow direction arrows
V	SSWR	FTTG			Sanitary Sewer: Caps and cleanouts
V	SSWR	IDEN			Sanitary Sewer: Identifier tags, symbol modifier, and text
V	SSWR	JBOX			Sanitary Sewer: Junction boxes
V	SSWR	JBOX	IDEN		Sanitary Sewer: Identifier tags, symbol modifier, and text
V	SSWR	LAGN			Sanitary Sewer: Lagoons
V	SSWR	LEAC			Sanitary Sewer: Leach field
V	SSWR	MHOL			Sanitary Sewer: Manholes
V	SSWR	MHOL	IDEN		Sanitary Sewer: Identifier tags, symbol modifier, and text
V	SSWR	NITF			Sanitary Sewer: Nitrification drain fields
V	SSWR	PIPE			Sanitary Sewer: Main Piping
V	SSWR	PIPE	A		Sanitary Sewer: Abandoned piping
V	SSWR	PLNT			Sanitary Sewer: Treatment plants
V	SSWR	PUMP			Sanitary Sewer: Booster pump stations
V	SSWR	RSVR	IDEN		Sanitary Sewer: Identifier tags, symbol modifier, and text
V	SSWR	SERV			Sanitary Sewer: Service piping
V	SSWR	SIGN			Sanitary Sewer: Surface markers/signs
V	SSWR	STNS	IDEN		Sanitary Sewer: Identifier tags, symbol modifier, and text
V	SSWR	TANK			Sanitary Sewer: Septic tanks
STEAM SYSTEMS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	STEM				Utilities: Steam lines
STRUCTURES
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	STRC	IDEN			Structures: Bridges, piers, breakwaters, docks, floats, etc. - annotation
V	STRC	OTLN			Structures: Bridges, piers, breakwaters, docks, floats, etc. - outlines
V	STRC	TOWR			Structures: Tower
STORM SEWER
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	STRM				Utilities: Storm sewer lines, culverts, manholes, and headwalls
V	STRM	AFFF			Storm Sewer: AFFF lagoon/detention pond
V	STRM	ANOD			Storm Sewer: Anode
V	STRM	CHUT			Storm Sewer: Chutes and concrete erosion control structures
V	STRM	CULV			Storm Sewer: Culverts
V	STRM	DEVC			Storm Sewer: Downspouts, flumes, oil/water separators, and flap gates
V	STRM	DRAN	IDEN		Storm Sewer: Identifier tags, symbol modifier, and text
V	STRM	EROS			Storm Sewer: Erosion control (riprap)
V	STRM	FLOW			Storm Sewer: Flow direction arrows
V	STRM	FMON			Storm Sewer: Flow monitoring station
V	STRM	FTTG			Storm Sewer: Caps and cleanouts
V	STRM	HWAL			Storm Sewer: Headwalls and endwalls
V	STRM	IDEN			Storm Sewer: Identifier tags, symbol modifier, and text
V	STRM	INLT			Storm Sewer: Inlets (curb, surface, and catch basins)
V	STRM	LAGN			Storm Sewer: Lagoons, ponds, watersheds, and basins
V	STRM	MHOL			Storm Sewer: Manholes
V	STRM	PIPE			Storm Sewer: Main Piping
V	STRM	PIPE	A		Storm Sewer: Abandoned piping
V	STRM	PUMP			Storm Sewer: Pump stations
V	STRM	ROOF			Storm Sewer: Roof drain line
V	STRM	RSVR	IDEN		Storm Sewer: Identifier tags, symbol modifier, and text
V	STRM	SERV			Storm Sewer: Service piping
V	STRM	SIGN			Storm Sewer: Surface markers/signs
V	STRM	STNS	IDEN		Storm Sewer: Identifier tags, symbol modifier, and text
V	STRM	SUBS			Storm Sewer: Subsurface drain piping
V	STRM	TEXT			Storm Sewer: Annotation
SURVEY
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	SURV	DATA			Survey: Data (benchmarks and horizontal control points or monuments)
V	SURV	IDEN			Survey: Survey, baseline, and control line annotation
V	SURV	LINE			Survey: Survey, baseline, and control line
V	SURV	SYMB			Survey: Survey line symbol
TAXIWAYS
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	TAXI	CNTR			Taxiways: Centerlines
V	TAXI	CNTR	IDEN		Taxiways: Centerline annotation
V	TAXI	CNTR	MRKG		Taxiways: Centerline markings
V	TAXI	EDGE			Taxiways: Edge markings
V	TAXI	HOLD			Taxiways: Hold lines
V	TAXI	IDEN			Taxiways: Identification Annotation
V	TAXI	OTLN			Taxiways: Outlines
V	TAXI	SHLD			Taxiways: Shoulder
TOPOGRAPHY
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	TOPO	BORE			Topography: Boring locations
V	TOPO	BRKL			Topography: Breaklines
V	TOPO	COOR			Topography: Coordinate grid ticks and text
V	TOPO	DTCH			Topography: Ditches and swales
V	TOPO	MAJR			Topography: Major contours
V	TOPO	MAJR	IDEN		Topography: Major contour annotation
V	TOPO	MINR			Topography: Minor contours
V	TOPO	MINR	IDEN		Topography: Minor contour annotation
V	TOPO	SHOR			Topography: Shorelines, land features, and references
V	TOPO	SLOP	TOPT		Topography: Top/toe slopes
V	TOPO	SOUN			Topography: Soundings
V	TOPO	SPEC			Topography: Species Site
V	TOPO	SPOT			Topography: Spot elevations
V	TOPO	TEXT			Topography: Annotation
V	TOPO	TINN			Topography: DTM triangles
V	TOPO	TINN	BNDY		Topography: DTM Boundaries
V	TOPO	TINN	NODE		Topography: DTM points
V	TOPO	TINN	SCAN		Topography: DTM Laser Scans
V	TOPO	WETL			Topography: Wetland
GENERAL UTILITIES
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	UTIL	UNID	IDEN		Utilities: Annotation
V	UTIL	UNID	LINE		Utilities: Lines
WATER
Discipline	Major	Minor1	Minor2	Minor3	Layer Description
V	WATR				Utilities: Water lines, hydrants, tanks
V	WATR	IDEN			Utilities: Water annotation

Layer Discipline Designator
Discipline Designator	Discipline
A	Architectural
B	Geotechnical
C	Civil
D	Demolition
E	Electrical
F	Fire Protection
G	General
H	Hazardous Materials
I	Interiors
L	Landscaping
M	Mechanical
P	Plumbing
Q	Equipment – Baggage
R	Real Estate/Lease
S	Structural
T	Telecommunications
V	Surveying/Mapping
Z	Contractor/Shop Drawing

Indicator	Status
PHS#	Phase of project (#=1-9)
D	Existing item to be demolished
E	Existing item to remain
F	Future work
M	Existing item to be moved
N	New work
T	Temporary work
X	Not in contract (not included in AutoCAD layer naming routine)
A	Abandoned item (not included in AutoCAD layer naming routine)

General Layer Names	General Layer Descriptions	Color #
G-ANNO-DIMS	Dimensions and Leaders	5
G-ANNO-IDEN	Identification Tags: Floor Id. #s; Room #s; Door #s; hardware group; Window #s; Equipment Id. #s; Furniture #s; Tenant Identification; Area calculations; Occupant or employee names; Elevation Id. #s; Component Id. #s	7
G-ANNO-KEYN	Key Notes	7
G-ANNO-KEYP	Kay Plan	8
G-ANNO-LEGN	Legends	4
G-ANNO-NOTE	Notes	7
G-ANNO-NPLT	Construction Lines, non-plotting information	8
G-ANNO-PATT	Cross-hatching, patterns, poche	5
G-ANNO-REDL	Redline Annotations	10
G-ANNO-REFR	Reference Files	7
G-ANNO-REVS	Revisions	4
G-ANNO-SCHD	Schedules	7
G-ANNO-SYMB	Miscellaneous Symbols	4
G-ANNO-TEXT	Miscellaneous text and callouts with associated leaders	7
G-ANNO-TITL	Drawing Component Titles, Detail Titles, Section Titles, Elevations	3
G-ANNO-TTLB	Border and title block information	2

STATUS	DESCRIPTION	COLOR	LINETYPE
A	Abandoned item	3	Hidden
D	Existing item to be demolished	Equal Color*	Hidden
E	Existing item to remain	252	Continuous
F	Future work	Equal Color + 1**	Continuous
M	Existing item to be relocated	Equal Color + 2**	Continuous
N	New work	Original Color	Continuous
T	Temporary work	174	Hidden2
X	Not in contract	7	Continuous
PHS#	Phase of project (#=1-9)	Varies	Varies

A
ACID	Industrial waste piping
AERI	Aerial
AFFF	Aqueous film forming foam
AFRZ	Anti-freeze
AFLD	Airfield
AIRS	Airspace, approach surface
ALGN	Alignment
ALRM	Alarm
ANNO	Annotation
APRN	Apron
AREA	Area
B
BAGS	Baggage system information
BCNS	Beacons
BEAM	Beam
BELL	Bell systems
BLDG	Building
BORE	Bore
BORW	Borrow
BRAC	Brace
BRIN	Brine
C
CABL	Cable
CATH	Cathode
CATV	Cable TV
CCTV	Closed Circuit TV
CHAN	Channel
CHEM	Chemical
CIRC	Circuit
CLNG	Ceiling
CLOK	Clock systems
CMPA	Compressed air
CNDW	Condenser water
CO2S	Carbon Dioxide system
COLS	Columns
COMM	Communications
CNDS	Condensate piping
CONF	Confined Space
CONT	Controls
CTRL	Control panels
CWTR	Chilled water
D
DECK	Deck
DECN	Decontamination
DETL	Details
DIAG	Diagram
DICT	Central dictation
DISC	Discipline
DISP	Displaced
DOOR	Door
DOMW	Domestic Water
DRED	Dredge
DUAL	Dual
DUCT	Duct
DUST	Dust and fume collection
E
ELEC	Electrical
ELEV	Elevation
EMER	Emergency Systems
EMCS	Emergency Monitoring Control System
EQPM	Equipment
EXHS	Exhaust
F
FEAT	Feature
FIXT	Fixture
FLOR	Floor
FNDN	Foundation
FUEL	Fuel lines
FURN	Furnishing
G
GLAZ	Glazed
GRAD	Grade
GRAT	Grating
GRDL	Ground/grade level
GRID	Grid
GRND	Ground
GTHP	Geothermal heat pump
H
HALN	Halon
HELI	Heliport
HTCW	High temperature/chilled water
HVAC	Heating, ventilation and air conditioning
HWTR	Hot water
HYDR	Hydraulics
I
IGAS	Inert gas
IW~~	Industrial waste
INSL	Insulation
INTC	Intercom/PA systems
IRRG	Irrigation
J
JNTS	Joints
JOIS	Joists
JACK	Jacks
K

L
LGAS	Liquid gas
LITE	Lighting
LSFT	Life safety / egress requirements
LTNG	Lightning protection
LO~~	Lubrication
M
MACH	Machinery
MATL	Materials
METL	Metal
MDGS	Medical/Dental gas
MNST	Monitoring stations
N
NGAS	Natural gas
NURS	Nurse call/paging systems
O
OPNG	Opening
OVRN	Overrun
P
PADS	Pads
PATT	Pattern (hatching)
PENE	Penetrations
PIPE	Piping
PRKG	Parking
PLAN	Plan, blueprint
PLNT	Plants/vegetation
POLE	Utility pole
POLL	Pollution
POWR	Power
PRIM	Primary electrical cable
PROC	Process piping
PROF	Profile
PROP	Property
PROT	Protection
PVMT	Pavement
Q

R
RAIL	Railroad
RATE	Rating
RCOV	Recovery
REFG	Refrigeration
REIN	Reinforcement
ROAD	Roadway
ROOF	Roof
RUNW	Runway
RWTR	Raw water
S
SFTY	Safety
SAMP	Sample
SEAP	Seaplane
SECD	Secondary electrical cable
SECT	Section
SERT	Security systems
SITE	Sitework
SLAB	Slab
SOUN	Sound systems
SPCL	Special
SPPT	Support
SPRN	Sprinkler
SSWR	Sanitary sewer
STAT	Status
STEM	Steam
STOR	Storage
STRC	Structures
STRM	Storm sewers/drain
STRS	Stairways
SURV	Survey
T
TAXI	Taxiway
TOPO	Topography
TRAF	Traffic
TRUS	Trusses
TVAN	TV antenna systems
U
UTIL	Utilities
V

W
WALL	Wall
WATR	Water
X

Y

Z
ZONE	Zoning