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Construction Abbreviations

Look through 2201 acronyms and abbreviations related to Construction:

2W-B	Two Wire, Base mounted smoke detector
2WT-B	Two Wire, Base mounted smoke detector with Thermal detector
4W-B	Four Wire, Base mounted smoke detector
4WA	Type 4 White Ash Lumber
4WP	Four-inch Wellpoint Pump
A	Area
A	Ampere
A&E	Architecture and Engineering
A&E	Accident & Emergency
AA	Anchor Assembly
aaa	l'American Arbitration Association
AAC	Autoclave Aerated Concrete
AAC	Autoclaved Aerated Concrete
AAC	Acute Angle Closure
AACE	American Association of Cost Engineers
AAEC	Australian Atomic Energy Commission
AAH	Academy on Architecture for Health
AAM	Application Activity Model
AAMA	American Architectural Manufacturer's Association
AASHTO	American Association of State Highway and Transportation Officials
AB	Asbestos Board
AB	Anchor Bolt
ABC	activity based costing
ABS	Anchor Bolt Stabilizer
ABS	Acrylonitrile, Butadiene, and Styrene
ABV	Above
AC	Acre
AC	Asphalt Concrete
aca	Australian Communications Authority's
ACC	Accessible Congregations Campaign
ACC	Accessory
ACC	Access Control Center
ACCEL	Accelerate
ACCL	American College of Construction Lawyers
ACCMP	Asphalt-Coated Corrugated Metal Pipe
ACCU	Air Cooled Condensing Unit
ACI	American Concrete Institute
ACI	Allied Construction Industries
ACN	Australian Company Number
ACOSS	Australian Council of Social Service
ACPA	American Concrete Pipe Association
Acr	acrylic
ACSM	American Congress on Surveying and Mapping
ACSP	Aluminized (Type 2) Round Corrugated Steel Pipe
ACT	Actual
ACTU	Australian Council of Trade Unions
ADAAG	Americans with Disabilities Act Accessibility Guidelines
ADAAG	Americans with Disabilities Act Architectural Guidelines
ADAB	Australian Development Assistance Bureau
ADACT	Associate Degree in Architecture Construction Technology

ADC	Automatic Data Collection
ADC	Analogue to Digital Converter
ADD	Addendum
add	Additional Degree of Difficulty
ADD	Addition
add	Additional Download Details
ADD	Additional Driver Discovery
ADDL	Additional
ADF	Approved Deposit Fund
ADF	Australian Defence Force
ADFP	Australian Defence Force Publication
ADH	ADaptive Hydraulics
ADH	Adhesive
ADJ	Adjust
ADL	Aerially Deposited Lead
ADO	ActiveX Data Objects (Microsoft)
ADR	Alternative Dispute Resolution
AEC	Architecture, Engineering, Construction
AECO	Architectural Engineering Construction and Owner
AECOM	Architecture Engineering Construction Operations and Management
AESS	Architecturally Exposed Structural Steel
AEW&C	Airborne Early Warning and Control
AF	All Flat
AF	After Foundation
AF	Agreed Framework
AF	Audio Frequency
AFC	Approved For Construction
AFD	Approval for Design (AFD)
AFF	Above Finish Floor
Afnor	Association Francaise De Normalisation
Ag	Aggregate Grizzly
AGA	American Gas Association
AGC	Associated General Contractors of America
AGCR	Assurex Global Construction Risks
AGD	Australian Geodetic Datum
Aggr	Aggregate
AGM	Annual General Meeting
AGP	Accelerated Graphics Port
AGPS	Australian Government Publishing Service
AGSO	Australian Geological Survey Organisation
AGST	Above Ground Storage Tank
AH	After Hours
AHA	Australian Hotels Association
AHAM	Association of Home Appliance Manufacturers
AHD	Australian Height Datum
AI	Articulation Index
AIA	American Insurance Association
AIA	American Institute of Architecture
AIBD	American Institute of Building Design
AIDC	Australian Industry Development Corporation

AIIA	Australian Information Industry Association
AIM	Application Interpreted Model
AIMP	Impervious Area
AINF	Infiltration Area
AISC	American Institute of Steel Construction, Inc.
AISI	American Iron and Steel Institute
AITC	American Institute of Timber Construction
AL	Aluminium
AL	Alabama
ALA	American Lung Association
ALM	Alarm Local Mode
ALM	Alarm List Manager
ALM	Alarm Module
ALO	Architectural Liaison Officer
ALRC	Australian Law Reform Commission
ALT	Alternate
ALT	Altitude
ALT	Alteration
AM	Amplitude Modulation
AMB	Ambient
AMBER	Atlas Muon Barrel and Endcap Reconstruction
AMCA	Air Movement and Control Association International, Inc.
amcu	Association of Mineworkers and Construction Union
AMCU	Association of Mining and Construction Union
AMDEL	Australian Mineral Development Laboratories
AMG	Australian Map Grid
AMO	Aircraft Maintenance Officer
AMP	Ampere
AMT	Amount
AN	Ammonium Nitrate
AN	Anode
ANCA	Australian Nature Conservation Agency
ANCR	Australian National Construction Review
ANFO	Ammonium Nitrate and Fuel Oil
ANMC	American National Metric Council
ANN	Annunciator
ANSI	American National Standards Institute, Inc.
ANT	Antenna
ANU	Australian National University (Canberra, Australia)
AP	Access Panel
AP	Application Protocol
APAC	Ashland Paving and Construction
APEO	alkylphenol ethoxylates
APHA	American Public Health Association
APHA	Australian Private Hospitals Association
APHC	Association of Plumbing Heating Contractors
API	Application Programming Interface
appd	Approved
approx	Approximate
APRC	Alliance for Patriotic Reorientation and Construction

APT	Apartment
apwa	American Public Works Association's
AQ	Air Quality
AQL	Acceptable Quality Level
AQMD	Air Quality Management District
AR	As Required
AR	Approved Roofing
AR	Aluminum Roofing
Ar.	Architect
Arch	Architect
ARM	Application Reference Model
ARO	Abrasion Resistant Overlay (Pipeline Coating)
ARS	United States Department of Agriculture's Agricultural Research Service
ARSE	Analysis and Reconstruction Sound Engine
AS	Australian Standard
ASAP	As Soon As Possible (pronounced AY-sap)
ASC	Associated Schools of Construction
asce	l'American Society of Civil Engineers
ASD	Allowable Stress Design
ASE	Alliance to Save Energy
ASHRAE	American Society of Heating, Refrigerating and Air-Conditioning Engineers
ASIC	Australian Securities & Investments Commission
ASME	American Society of Mechanical Engineers
asnt	American Society for Nondestructive Testing's
ASSOC	Associate(d)
ASSY	Assembly
ASTM	American Society for Testing and Materials (Philadelphia, Pennsylvania)
AT	Atmosphere
AT	Air Temperature
ATC	Air traffic control
ATM	Automatic Teller Machine
atm	atmospheric pressure
ATM	Alternative Test Method
ATM	Asynchronous Transfer Mode
ATS	Abstract Test Suites
ATTEN	Attenuation
AU	Astronomical Unit
auth	authorized, authority
AUTO	Automatic
AV	Audio-visual aids
AVB	Atmospheric Vacuum Breaker
Ave.	Avenue
AVG	Average Voltage Gain
AW	Acid Waste
AWCI	Association of the Wall and Ceiling Industry
AWF	Animal Welfare Foundation
AWG	American Wire Gage
AWG	American Wire Gauge
AWI	Architectural Woodwork Institute
AWIC	Advancing Women in Construction

aws	American Welding Society's
AWT	Abstract Windowing Toolkit
AWWA	American Water Works Association (Denver)
AX	Axis
B&B	Bed and Breakfast
B&W	Babcock & Wilcox - Black And White - Bowers & Wilkins
BA	Building Approval
BAA	Business Area Analysis
BAC	Building Automation and Controls
Baf	Baffle
BAL	Ballast
BAL	Balance
BAPI	Business Application Programming Interface (SAP)
BASA	British Adhesives and Sealants Association
BASE	Buildings, Antennas, Spans, and Earth
BAT	Best Available Technology
BB	Ball Bearing
BB	Bulletin Board
BBL	Barrel
BBS	Bulletin Board Service
BC	The Best Construction
BC	Bituminous Concrete
BCA	Building and Construction Authority
BCATS	Building Construction and Allied Trades Skills
BCC	Blind Carbon Copy
BCC	Bearings, Chains, and Cables
BCCM	Building Construction Core Model
BCCMP-FP	Bituminous-Coated Corrugated Metal Pipe - Fully Paved
BCCSP-FP	Bituminous-Coated Corrugated Steel Pipe - Fully Paved
BCT	Best Conventional Technology
BCT	Building and Construction Technology
BCTC	Building and Construction Trades Council
BD	Board
BDCA	Bronx Design and Construction Academy
BDY	Boundary
BETEC	Building Environment & Thermal Envelope Council
betw	between
Bev	Bevel
BF	Board Foot
BF	Back Face
BFP	Bonded Fiber Matrix
BFP	Boiler Feed Pump
bifr	Board for Industrial Financial Reconstruction
BIFR	Bureau of Industrial Financial Reconstruction
BIOS	Basic Input Output System
BKR	Breaker
BL	Base Line
BLDG	Building
BLEVE	Boiling Liquid Expanding Vapour Explosion
BLF	Builders Labourers Federation

BLK	Block
Blvd.	Boulevard
BM	Beam
BM	Building Materials
BMP	Best Management Practice
BMT	Bellamuel Motoradd Triada
BMTPC	Building Materials & Technology Promotion Council
Bncc	Babbit Neuman Construction Company
BO	Business Object
BOCA	Building Officials and Code Administrators International, Inc.
BOCA	Building Officials Code Administrators International
BOD	Biochemical Oxygen Demand
BOM	Build of Material
BOP	Bottom of Pipe
BOT	Bottom
BOWEC	Building Operations and Work of Engineering Construction
BP	Beam Pipe
BP	Bypass
BP	Boiling Point
BPAC	Building Performance Assessment Centre
BPF	British Property Federation
BR	Bedroom
BRA	Breast Reconstruction Awareness
BRD	Bureau for Reconstruction and Development
BRDG	Bridge
BRE	Building Research Establishment
BRG	Bearing
BRI	Building Related Illnesses
BRK	Brick
BRKR	Breaker
BRKT	Bracket
BS	British Standard
BSC	Business Steering Committee
BSI	British Standards Institution
Bsmnt.	Basement
BSMT	Basement
BSOD	Blue Screen Of Death
BSR	Basic Semantic Repository
BSU	Basic Structural Unit
BSU	Basic Semantic Unit
BTCS	Bard's Tale Construction Set
BTR	Better
BTU	British Thermal Unit
BU	Bushel
BUDF	BUilder Data Form
BUR	Built-Up Roof
BUREC	BUReau d'Etudes et de Construction
BV	Brick Veneer
BYO	Bring Your Own
C	Coulomb

C	Centigrade
C of Q	Certificate of Qualification
C/min	Cycles Per Minute
C/O	Care Of (postal Code Indicating Temporary Address Change)
C/S	Cycles Per Second
CA	Catchment Area
CA	Cellulose Acetate
CA	Contractor Activities
CA	Compressed Air
CAA	Civil Aviation Authority
CAB	Cabinet
CABO	Council of American Building Officials
CABO (ICC)	Conference of American Building Officials (International Code Council)
CACP	Chinese American Construction Professionals
CAD	Computer-Aided Drafting
cad	Computer Aided Designer
CADM	Computer-Aided Document Management
CADP	Construction and Analysis of Distributed Processes
CAE	Computer-Aided Engineering
CAL	Calorie
CAL-EPA	California Environmental Protection Agency
CAL-OSHA	California Division of Occupational Safety and Health Administration
CALP	Constructionist Approaches to Language Pedagogy
CAM	Computer Aided Manufacture
CAM	Content Addressable Memory
cam	Construction Association of Michigan
CANS	Construction Association of Nova Scotia
CAP	Capacity Assurance Plan
CAP	Capacity
cap	Capacity Assurance Program
CAP	Cellulose Acetate Propionate
CAP	Capacity Market Programs
CAPPS	Clearance Assessment Program for Power Systems
CAR	Contract Acceptance Review
CAS	Chemical Abstract Service
CAS	Complete Active Space
CASA	Civil Aviation Safety Authority
CASF	Construction Association of South Florida
CASQA	California Stormwater Quality Association
CAT	Catalog
CAT	Computer Aided Testing
CAT	Computer-Aided Tomography
CAT	Compact All Terrain
CAV	Cavity
CB	Construction Battalion
CBA	Cost Benefit Analysis
CBB	Construction and Business Bank
CBC	Construction Building Committee
CBC	Construction By Cosets
CBC	California Building Code

CBD	Cash Before Delivery
CBI	Confidential Business Information
CBI	Confederation of British Industry
CBM	Construction Building Materials
CBO	Common Business Object
CBR	Construction Build Rating
CBR	California Bearing Ratio
CBR	Case-Based Reasoning
CBT	Center for Building Technology
CC	construction chemicals
cc	with food, (but also cubic centimetre)
CC	Carbon Copy
CC	City Council
CC	Cubic Centimeter
CC	Cooling coil
CCA	Canadian Construction Association
CCB	China Construction Bank
ccb	Contractors Construction Board
CCB	Construction Criteria Base
CCB	Connecticut Community Bank
CCB	Charpentes Constructions Bois
CCBFC	Canadian Commission on Building and Fire Codes
CCCP	Cosmic Communist Constructions Photographed
CCDC	Canadian Construction Documents Committee
CCDI	China Construction Design International
CCHT	Canadian Centre for Housing Technology (part of NRC)
CCI	Construction Cost Index
CCIA	Connecticut Construction Industries Association
CCIR	Centre for Construction Innovation and Research
CCMC	Canadian Construction Materials Centre
CCN	Contract Change Notification
CCN	Contract Change Notice
CCPR	Certified Construction Product Representative
CCQ	Commission de la Construction du Québec
CCR	California Code of Regulations
CCS	Cellular Confinement System
CCS	Corinthian Cast Stone (New York)
CCT	Compatible Construction Technology
cct	Closed-Circuit Television
CCT	Closed Circuit Test
CCT	Circuit Configuration Table
CCT	Circuito Cerrado de Televisión
CCT	Circuit
CCT	Court Circuit Team
CCT	Circuit Connection Table
CCU	Coronary Care Unit
CCW	Counter Clockwise
CD	Cadmium
CD	Cold Drawn
CD	Compact Disc

CD	Committee Draft
CDA	Copper Development Association Inc.
CDA	Cofficient of Dynamic Augment
CDAO	Construction and Design Alliance of Ontario
CDL	Component Description Language
CDM	Cement Deep Mixing
CDM	Construction Design and Management
CDMCS	Council for Dredging and Marine Construction Safety
CDR	Concept Design Report
CDS	Cold Drawn Steel
CDW	Construction and Demolition Waste
CE	Cost Estimate
CE	Civil Engineer
CE	Concurrent Engineering
CEA	Cost Effective Analysis
CEA	Construction Employers Association
CEC	Civil Engineering Corporation
CEC	Construction Equipment Company
CEC	Cation Exchange Capacity
CEC	Canadian Electrical Code
CECCO	Construction Employers Coordinating Council of Ontario
cefa	Construction Education Foundation of Alabama
CEMP	Comprehensive Emergency Management Plan
CEMT	Construction Engineering Management Technology
CEO	Consulting Engineers of Ontario
CEO	Chief Executive Officer
cep	Construction Electrical Products
CEPI	Construction Equipment Parts Inc
CEQA	California Environmental Quality Act
CERL	Construction Engineering Research Laboratory
CEWA	Critical Equipment Work Authorization
CF	Complete Finisher
CF	Cold Finish
CF	Cubic Feet
CFD	computational fluid dynamics
CFD	Centre for Design
CFM	Construction Facilities Management
CFM	Cubic Feet per Minute
CFMEU	Construction Forestry Mining and Energy Union
CFMO	Construction And Facilities Management Office
CFMO	Construction and Facilities Maintenance Office
CFMS	Construction Finance Management System
CFP	call for papers
CFR	Code of Federal Regulations
CFRD	Concrete Face Rockfill Dams
CFRP	Carbon Fibre Reinforced Panel
CFS	Cubic Feet per Second
CG	centre of gravity
CG	Computer Graphics
CGI	Common Gateway Interface

CGMP	Current Good Manfacturing Practice
CGP	Construction General Permit
cgs	Centimetre-gram-second
CGT	Capital Gains Tax
CHAN	Channel
CHASE	construction health and safety excellence
CHICO	Cámara Hondureña de la Industria de la Construcción
CHIP	Conical Hull Intersection Property
CHMM	Construction Hazardous Material And Management
CHST	Construction Health Safety Technician
CHT	Ceiling Height
CHW	Chilled Water
CI	Construction Index
CI	Cast Iron
CIA	Cold Inducted Air
CIACO	Construction Industry Advisory Council of Ontario
CIB	Construction Industries Board
CIC	Construction Industry Council
CICC	Construction Industry Computing Council
CICC	Construction Industry Coalition Council
CICC	Construction Industry Coalistion Council
CICU	Construction Industries Credit Union
CID	Construction Industries Division
CIDB	Construction Industry Development Board
CIE	Construction Information Executives
CIF	Construction Innovation Forum
CII	Confederation of Indian industry
CIIC	Construction in Indian Country
CIM	Computer Integrated Manufacturing
CIM	Construction Industries of Massachusetts
CIP	Construction In Progress
CIP	Cast Iron Pipe
CIPE	Certified In Plumbing Engineering
CIPG	Construction Industry Practice Group
CIPP	Cast Iron Pressure Pipe
CIR	Circular
CIR	Circle
Circ	Circumference
CIRIA	Construction Industry Research and Information Association
CISC	Canadian Institute of Steel Construction
CISCA	Ceilings Interior Systems Construction Association
CISP	Cast-Iron Soil Pipe
CISP	Construction Industry Service Program
CITC	Canadian Institute for Timber Construction
CITC	Construction Industry Training Council
CKT	Circuit
Cl	Closing
Cl	closure
CL	Clearance
CL	Classic

CL	Class
CLG	Ceiling
CLGHT	Ceiling Height
Clk/Rm	Cloakroom
Clo.	Closet
CLP	Clamp
CLR	Clear
CLSAB	Canadian Lumber Standards Accreditation Board
CM	Construction Management
CM	Corrective Maintenance
CM	Corrugated Metal
CM	Configuration Management
CMA	Congestion Management Program
CMB	Construction Materials Board (DND, Canada)
CMC	computer-mediated communication
CMCEF	Canadian Mechanical Contractors Education Foundation
CMIE	Construction Management and Industrial Engineering
CMMA	Corrugated Metal - Metal Arch
CMMAC	Corrugated Metal-Metal Arch Culvert
CMMS	Computerized Maintenance Management System
CMOS	Complementary Metal Oxide Semiconductors
CMP	Corrugated Metal Pipe
CMP	Corrugated Metal Pipe (Round)
CMPA	Construction Material Processors Association
CMST	Construction Management Skills Training
CMU	Concrete Masonry Unit
CN	Change Notice
CN	Cellulose Nitrate
CN	Construction Number
CNB	Construction Navale Bordeaux
CNCS	Cherokee Nation Construction Services
CNG	Compressed natural gas
CNSTR	Construction
CNTR	Center
CO	Company
CO	Change Order
COAA	Construction Owners Association of Alberta
COAA	Construction Owners Association of America, Inc
COAX	Coaxial Cable
COAX	Coaxial Machinegun
COCA	Council of Ontario Construction Associations
COCA	Council of Owners and Construction Associates
COCP	Code of Construction Practice
COD	Chemical Oxygen Demand
COE	Creek Corps of Engineers
COE	Army Corps of Engineers
COEF	Coefficient
COL	Column
COM	Common
COMB	Combustion

COMB	Combination
COML	Commercial
COMP	Composition
COMP	Compressed
COMPT	Compartment
COND	Condenser
CONN	Connection
CONST	Under Construction
CONSTRUCT	Computer-Aided Knowledge Engineering for Construction Tasks
CONT	Control
CONT	Continue
COP	Code of Practice
COP	Coefficient of Performance
COR	Corner
CORBA	Common Object Request Broker Architecture
CORR	Corrugate
COSA	Construction Open Software Alliance
COTS	Commercial Off the Shelf Software
COV	Cover
CP	Constant Pressure
CP	Construction Planning
CP	Cathodic Protection
CP	Cost Proposal
CP-ES	Clay Pipe - Extra Strength
CPA	Critical Path Analysis
CPAM	Construction Project Administration Manual
CPAP	Construction Premium Adjustment Program
CPAR	Construction Productivity Advancement Research
CPB	Construction Programs Bureau
CPCI	Canadian Precast/Prestressed Concrete Institute
CPCK	Class Poppy Construction Kit
CPCS	Construction Plant Competence Scheme
CPD	Continuous Professional Development
CPDM	Comprehensive Pavement Design Manual
CPE	Chlorinated Polyethylene
CPI	Consumer Price Index
CPI	Coalescing Plate Interceptor
CPIBC	Centre for Process Innovation in Building and Construction
CPIC	Construction Project Information Committee
CPM	Critical Path Method
CPMIS	Construction Project Management Information System
CPRS	Construction Progress Reporting Surveys
CPSISC	Construction & Property Services Industry Skills Council
CPT	Carpet
CPTC	Constructioncentral Passenger Terminal Complex
CPU	Central Processor Unit
CQ	Commercial Quality
CR	Control Room
CR	Chromium
CRAR	Construction Regulations And Rules

CRAW	Construction Risk Assessment Workshop
CREWS	Construction Recruitment External Workers Services
CRIS	Construction Risk and Insurance Specialist
crm	Customer Relationship Management
CRPH	Cross Recess Pan Head
CRS	Cold Rolled Steel
CRS	Course
CRS	Course Request System
crs	Coursed Rubble Stone
CRS	Commonwealth Rehabilitation Service
CRSI	Concrete Reinforcing Steel Institutetute
CRT	Cathode Ray Tube (type of TV)
CS	Carbon Steel
CS	Corrugated Steel
CS	Cast Steel
CS	compressive strength
CSC	Construction Specifications Canada
CSCS	Construction Skills Certification Scheme
csct	Colombo School of Construction Technology
CSCW	Computer Supported Collaborative Work
CSDFMA	Canadian Steel Door and Frame Manufacturers' Association
CSEA	Construction Safety and Excellence Awards
CSG	Casing
CSI	Construction Specifications Institute
CSIC	Centre for Smart Infrastructure and Construction
CSIRO	Commonwealth Scientific and Industrial Research Organization
CSK	Countersink
CSLM	Controlled Low Strength Material
CSMA	Corrugated Steel - Metal Arch
CSMAC	Galvanized Corrugated Steel - Metal Arch Culvert
CSP	Corrugated Steel Pipe
CSPI	Corrugated Steel Pipe Institute
CSS	Cascade Style Sheet
CSS	Complete Sewer Separation
CSSBI	Canadian Sheet Steel Building Institute
CSSD	Central Sterile Supply Department
CSTC	Construction Skills Training Center
CSW	Critical Structural Weakness
CSW	Certified Structural Welder
CTB	Cement Treated Base
CTC	Centralized Traffic Control
CTL	Construction Technology Laboratories, Inc.
CTR	Center
cts	Construction Testing Services
CU	Copper (Latin Cuprum)
CU	Cubic
CUC	Currently Under Construction
CUP	Construction Of Useful Parsers
CUR	Current
CUSUM	cumulative summation

CV	Check Valve
CV	Control Valve
CVC	Conventional Concrete
CVDG	Construction Vibration Damage Guide
CW	Clockwise
CWA	Clean Water Act of 1982
CWC	Canadian Wood Council
CWDS	Cold Water Down Service
CWIP	Construction Work in Process
CWT	Copper Water Tube
CY	Cubic Yard
CY	Cycle
CYL	Cylinder
CZAR	Construction Zone Accident Reduction
d	Dayton
D	Drain
D	Day
DAC	Digital to Analogue converter
DAS	Department of Administrative Services
dB	Decibel
DB	Dry Bulb
DB	Distribution Box
DBFO	Design, Build, Finance, and Operate
DBL	Double
DBST	Double Bituminous Surface Treatment
DBT	Dry Bulb Temperature
DC	Direct Current
DCD	Document Content Definition
DCD	Deputy Construction Director
DCE	Distributed Computing Environment
DCEN	Direct Current Electrode Negative
DCEP	Direct-Current Electrode Positive
DCF	discounted cash flow rate
DCG	Dominion Construction Group
DCI	Darex Corrosion Inhibitor
DCIA	Directly Connected Impervious Area
DCK	Diversified Construction Knowledge
DCK	Doom Construction Kit
DCM	Design Construction Maintenance
DCM	Design and Construction Management
dcn	Design and Construction Network
DCN	Direction des Constructions Navales (France)
DCN	Daily Commercial News
DCOM	Distributed Component Object Model
DCS	Distributed Control System
DD	degree day
DDC	Department of Design and Construction
DDC	Direct Digital Control
DDE	Dynamic Data Exchange (in software parlance)
DEFRA	Department of Environment, Food and Rural Affairs

DEG	Degree
DEPR	Depression
Dept	Department
DES	Data Exchange Standard
DET	Detail
DFI	Defining Formula for Inhabitation
DFL	Doug Fir Lumber
DFLC	Dan Fix Landscape Construction
DFRCC	Ductile Fiber Reinforced Cementitious Composites
DFS	Decayed and Filled Surfaces
DGH	District General Hospital
DGW	Double-Glazed Window
DH	Drill Hole
DI	Ductile Iron
DIA	Diameter
DIAG	Diagonal
DIAM	Diameter
DiBt	Deutsches Institut für Bautechnik
DIM	Dimension
DIP	Ductile Iron Pipe
DIR	Direction Interdépartementale des Routes
DIS	Draft International Standard
Div	Divisionsion
DIY	Do-It-Yourself
DL	Drawing List
DL	Drainage Layer
DL	Dead Load
DLT	Discharge Line Temperature
DM	Document Management
DMA	Dead Man Anchor
DMH	Drainage Manhole
DMU	Digital Mock-Up
DN	Down
DNV	Det Norske Veritas
DO	Ditto
DO	Do Over
DOAS	Dedicated Outdoor Air System
dod	Department of Defence
DOE	United States Department of Energy (government)
DOM	Document Object Model
DP	drain point
DP	Dew Point
DP	Down Pipe
DPA	Digital Pre-Assembly
DPC	Damp Proof Course
DPC	Dredging and Port Construction
DPDT	double pole double throw switch
DPI	Differential Pressure Indicator
DPST	double pole single throw switch
dr	drain

DR	Door
DRA	Differential Reinforcement of Alternative
DS	Disconnect Switch
DS	Double Strength
DS	Door Switch
DSA	Division of the State Architect (California)
DSA	Department of State Architects
DSC	Differential Scanning Calorimetry
DSEAR	Dangerous Substances and Explosive Atmospheres Regulations 2002
DSS	Decision Support System
DST	Drill Stem Test
dsto	Defence Science and Technology Organisation's
DTA	Differential Thermal Analysis
DTD	Document Type Definition (XML)
DTI	Direct Tension Indicator
DTSC	California Department of Toxic Substances Control
DVD	Dual View Display
DW	Distilled Water
DW	Drinking Water
DWG	Drawing
dwr	Drawer
DX	Duplex
dyn	dyne
E	East
E&C	Engineering & Construction
E&OE	Errors and Omissions Excepted
E-E	End-To-End
E-MAIL	Electronic Mail
EA	Each (as in a unit of measurement - one each)
EAI	Enterprise Application Integration
EBV	Exhaust Back-pressure Valve
EC	ethyl cellulose
ECA	Electrical Contractors Association
ECAO	Electrical Contractors Association of Ontario
Ecc	Eccentric
ECCI	Engineering and Construction Cost Index
ECCI	Elite Custom Construction Inc
ECD	Estimated Completion Date
ECDA	External Corrosion Direct Assessment
ECK	Entity Construction Kit
ECM	Electronic Counter Measures
ECMS	Engineering and Construction Management
ECWC	Employers' Council on Workers' Compensation
ED&P	Engineering Design and Procurement
EDC	Environmental Design Construction
EDI	Electronic Data Interchange
EDM	Electronic Data Management
EDM	Electronic distance measurement
EDP	Electronic Data Processing Plc (London Stock Exchange [LSE])
EDR	Equivalent Direct Radiation

EEBA	Energy and Environmental Building Association
EEC	Eggart Engineering Construction
EEC	Effect Effluent Concentration
EECC	Enron Engineering And Construction Company
EEIG	European Economic Interest Group
EEMAC	Electrical and Electronic Manufacturers Association of Canada
EEO	Equal Employment Opportunity
EERE	Energy Efficiency and Renewable Energy Clearing House (DOE program)
EF	earliest finish
EF	Exhaust Fan
EFT	Electronic Funds Transfer
EGA	Evolved Gas Analysis
EGA	Enhanced Graphics Array
EGM	Extraordinary General Meeting
EH	Extremely High
EHV	Extra High Voltage
EI	Engineering and Installation
EI	Enterprise Integration
EI SIT	Engineering and Installation Site Implementation Team
EIA	Environmental impact assessment (international)
EIA	Extended Interaction Amplifier
EIB	European Installation Bus (home automation)
EINECS	European Inventory Of Existing Commercial Chemical Substances
EIR	Environmental Impact Report
EIS	Environmental Impact Statement (US)
EJB	Enterprise Java Bean
EL	Elevator
EL	Elastic Limit
EL	Elevation Limit
ELB	Elbow
ELCB	Earth Leakage Circuit Breaker
ELEC	ELECTRICAL, ELECTRIC, ELECTRICIAN
ELEV	Elevator
ELSA	European Laboratory for Structural Assessment
ELV	Extra Low Voltage
EM	Emergency
EM	Emergency Medicine
EMC	Equilibrium Moisture Content
EMC	Event Mean Concentration
EMER	Emergency
EMER	Emergency Monitoring Equipment Room
EMER	Emergency Medical Expense Requirement
EMP	Energy Management Program
EMP	Environmental Management Plan
ENCL	Enclosure
ENG	Engineering Department
Engr	Engineer
ENTR	Entrance
EO	Explosive Ordnance
EOD	Explosive Ordnance Device

EOR	Engineer of Record
EOS	Equivalent Opening Size
EPA	Environmental Protection Agency (US)
EPC	Engineering Procurement and Construction
EPC and BOP	Engineering, Procurement, and Construction, and Balance of Plants
EPCC	Engineering Procurement Construction Contractor
EPCC	Engineering Procurement Construction and Commissioning
EPCM	Engineering, Procurement, Construction, and Management
EPCT	Engineering Procurement and Construction
epdm	Ethylene Propylene Diene Monomere
EPIC	Excavation Pipeline Inspection And Construction
EPP	Environmentally Preferable Product
EPR	Earth Potential Rise
EPR	Ethylene-Propylene Rubber
EPROM	Erasable Programmable Read-Only Memory
EPS	Expanded Polystrene
EPS	Emergency Power Supply
EPSCA	Electrical Power Systems Construction Association
EPSCC	Engineering Procurement Supply Construction and Commissioning
EQP	Equipment
EQPT	Equipment
EQUIP	Equipment Usage Information Program
EQUIP	Equipment
EQUIP	Equipment Query User Interface Program
ER	Epoxy Resin
ER	Emergency Room
ERA	Environmental Risk Assessment
ERD	Entity Relationship Diagram
ERP	Enterprise Resource Planning
ES	Edge Split
ES	earliest start
ESA	Equipment Stop Area
ESA	Electrical Safety Authority
ESA	Environmentally Sensitive Area
ESC	Erosion and Sedimentation Control
ESD	Ecologically Sustainable Development
ESD	Electrostatic Discharge
ESDV	Emergency Shutdown Valve
ESP	Exchangeable Sodium Percentage (soils)
ESP	Electrical Submersible Pump
EST	Estimate
EST	Energy Saving Trust
est	Estimated Ship Time
EST	Estimated Starting Time
EST	Earliest Start Time
ET	Effective Temperature
ETABS	Extended Three-dimensional Analysis of Building Systems
EU	European Union (1994; formerly referred to as the EEC or EC)
EVAP	Evaporator
EWI	External Wall Insulation

EWS	Emergency Warning System
EXEC	Executive
EXH	Exhaust
EXP	Expansion
EXT	Exterior
F	Farad (SI Unit Of Capacitance)
F/I	Furnish and Install
FA	Fire Alarm
FAA	Federal Aviation Administration
FAC	Federal Airports Corporation
FACP	Fire Alarm Control Panel
FAD	Fresh Air Damper
FAHU	Fresh Air Handling Unit
Fam/Rm	Family Room
FAQ	Fair Average Quality
FAQ	Frequently Asked Questions (sometimes Pronounced Fak)
FBE	Fusion Bonded Epoxy
FBM	Foot Board Measure
FC	Flexi Crete
FCAW	Flux-cored Arc Welding
FCCC	FALLS CHURCH CONSTRUCTION CORPORATION
FCD	Field Change Document
FCFG	Facing Gauge for Fiber Cement
FCR	Fast Cast Rate
FD	Forced Draft
fdt	Field Density Test
FEA	Finite Element Analysis
FEMA	Federal Emergency Management Agency
FENSA	Fenestration Self-Assessment Scheme
FEP	Fluorinated Ethylene Propylene
FF	Free Float
FGL	Finish Ground Level
FH	Fire Hydrant
FHWA	Federal Highway Administration
FI	Flow Indicator
Fil	Fillet
FIN	Finished
FIRM	Flood Insurance Rate Map
FIS	Flood Insurance Study
FLIC	Flexible Learning in Construction
FLK	Fritiof Larssons Konstruktionsbyrå
FLT	Flowline Lifting Tool
fm	Field Memorandum
FM	Force Main
fm	Force Maintenance
fm	Field Memory
FMA	Final Mechanical Art
FMC	Facility Management Centre
Fnc.Rm.	Furnace Room
FO	Field Order

FOU	Foundation
FR	Fire Retardant
FRC	Fire Resistant Construction
FRC	Flow Rate Controller
FRP	Fiberglass Reinforced Plastics
FSEC	Florida Solar Energy Center
FT	Frame Thickness
FWD	Field Work Directive
G1S	Good One Side
GBC	Green Building Council
GC	General Contractor
GCL	Geometry Construction Language
GFRC	Glass Fiber Reinforced Composite
GFS	Ground floor slab
GIRI	GirryRigged
GIS	Geographical Information System
GLCM	Global Leaders in Construction Management
GLULAM	Glue-Laminated Beam
GMP	Goat Manure Plaster
GR	Galvanized Roofing
GRCS	Ground Rigging Control System
Grt/Rm	Large Formal Reception Room
GS	Grid Standpipe
GS	Grade Stamped
GSFT	Glazed Structural Facing Tile
Gst/BR	Guest Bedroom
GTAW	gas tungsten arc welding
GVCA	Grand Valley Construction Association
GWB	Gypsum Wall Board
HAZMAT	Hazardous Material
HBC	house building construction
HCA	Hamilton Construction Association
HCME	Hitachi Construction Machinery Europe
HCSS	Hand Cut Shingle Shakes
HDO	High Density Overlaid
hdpe	High Density Polyethylene Electrical
HET	High-Efficiency Toilet
HFS	High-Friction Surfacing
HGS	Hurricane Gate Structure
HGS	Horizontal General Purpose Standard
HICC	Heavy Industry Construction Co
HOA	Height of Attachment
HOW	head-of-wall
HPFRCC	High Performance Fiber Reinforced Cement Composites
HPFS	Hign Point of Finished Surface
hrf	Haiti Reconstruction Fund
hs	Home Sitemap
Hs	Home Site
Hs	Hard Surface
HSG	hydrologic soil group

HVEC	Hudson Valley Environmental Construction
IAQA	Indoor Air Quality Association
IBACOS	Integrated Building and Construction Solutions
IBC	International Building Code
IBC	Insurance Bureau of Canada
IBRC	Innovative Bridge Research and Construction
IBRD	International Bank of Reconstruction and Development
ICA	Industrial Construction Association
ICBO	International Conference of Building Officials
ICC	International Code Council
ICCT	Image Construction and Composition Tool
ICET	Institute for Construction Education and Training
ICG	Interior Construction Group
ICIS	International Construction Information Society
ICK	Invocation Construction Kit
ICPM	Innovative Construction Project Management
ID	Inside Dimensions
IFDC	International Facade Design and Construction
IGU	Insulated Glass Units
IHC	Interstate Highway Construction
IIRP	Iraq Infrastructure Reconstruction Program
ILS	Intense Lighting System
IMC	In Mold Cutting
IMPACT	International Missions Projects And Construction Teams
IMR	Iterative Model Reconstruction
IMT	Immersed Tube Tunnel
IP	Internet Protocol
IP	Intellectual Property
IPCS	International Programme on Chemical Safety
IPD	Integrated Product Development
IPM	Integrated Pest Management
IPO	Initial Public Offering
IPS	Iron Pipe Size
IPT	Integrated Product Teams
IR	Industrial Relations
IR	Inspection Request
IR	Infrared
IRR	Internal Rate of Return
IS	International Standard
ISDN	Integrated Services Digital Network
ISES	International Solar Energy Society
ISMB	Indian Standard Medium-weight Beam
ISOP	Interim Structural and Operational Plan
ISP	Internet Service Provider
ISP	Information Strategy Planning
IT	Information Technology
ITP	Inspection And Test Plan
ITU	Intensive Therapy Unit
IUPAC	International Union of Pure and Applied Chemistry
IW	Induction Welding

J	Joule
JAE	Journal of Architectural Education
JAL	Jaiprakash Associates Limited
JB	Junction Box
jcdc	Journal of Construction in Developing Countries
JCT	Junction
JDAC	Joint Development and Adjacent Construction
JFCC	Japan Federation of Construction Contractors, Inc.
JHSC	Joint Health and Safety Commission
JISC	Japanese Industrial Standards Committee
JIT	Just in time
JO	Job Order
JOD	Joint Occupancy Date
JRC	Jewish Reconstructionist Congregation
JSM	Job Site Measurement
jt	Joint
JURMP	Jurisdictional Urban Runoff Management Program
JVM	Java Virtual Machine
JWC	Jon Wayne Construction
K	Kelvin (absolute temperature scale)
k	Kilogram
K	Kilo-
K3U	Keep Three Units
KB	Knee Brace
KBC	Kliewer Brothers Construction
KBS	Knowledge Based System
KC	Kilocycle
KCI	Keesling Construction Inc
kg	Kilogram
Kgf	Kilogram Force
KHz	kilohertz (1000 cycles per second)
KIF	Knowledge Interchange Format
KIP	Kilopound
KIT	Kitchen
kJ	kilojoule (energy measure)
Km	Kilometer (1,000 meters)
kN	Kilonewton
kPa	kiloPascal (pressure above ambient (100 kPa = 1 atmosphere excess))
KS	Kum Shing
KSC	Knowledge Sharing and Construction
KSI	Kips Per Square Inch
kV	Kilovolt (one thousand volts) (measurement)
KVA	Kilovolt-Ampere
Kw	Kilowatt (one thousand watts) (measurement)
KWC	Kurt Wimberg Construction
kWh	Kilowatt hour (one thousand watt hours) (measurement)
L	Line
L	Left
L	Length
L	Litre

L	Long
LA	Lightning Arrester
LA	Local Authority
LA	Lambert
lab	Laboratory Accreditation Board
LAB	Laboratory
Lab	Laboratory Animals Bureau
lab	Laboratory Assessments Board
LADC	Library of Architecture Design and Construction
LAN	Local Area Network
LARS	Ligament Augmentation Reconstruction System
LAT	Latitude
Lat	Lateral
LAV	Lavatory
lb	Pound
lbf	pound force
LBL	Label
LC	Level Compressed
LCA	Life cycle assessment for steel construction
LCC	Life Cycle Costing
LCD	Liquid Crystal Diode
LCD	Liquid Crystal Display
LCI	Lean Construction Institute
LCL	Lower Confidence Limit
LDPE	Low-Density Polyethylene (#4 plastic)
LED	law enforcement desk; light emitting diode
LEED	Leadership in Energy & Environmental Design
LEL	Lower Explosive Limit
LENI	Lighting Energy Numeric Indicator
LF	Low Frequency
LF	latest finish
LF	Load Factor
LFL	Lower Flammability Limit
LGA	Local Government Area
LH	Left Hand
LHD	Left Hinged Door
LHS	Left Hand Side
LIB	Object Code Library
Liby	Library
LIN	Linear
LINAC	Linear Accelerator
LIQ	Liquid
LISA	LCA (Life Cycle Assessment) In Sustainable Architecture
LL	Live Load
LLDPE	Linear Low Density Polyethylene
LLT	Liquid Line Temperature
LLV	Long Leg Vertical
LM	Lumen
LN	length
Ln.	Lane

LNDG	Landing
LNG	Liquefied Natural Gas
LOA	Length Overall
LOC	Locate
loc.	location
LOD	Level Of Detail
LONG	Longitude
LP	Low Pressure
LP	Level Points
LP	Loft Plan
LPM	Litres Per Minute
LPS	Low Pressure Sodium
lpW	lumens per watt
LR	Living Room
LR	Long Radius
LRFD	Load and Resistance Factor Design
LRTI	Ligament Reconstruction and Tendon Interposition
LS	Low Speed
LS	Loud Speaker
LSAW	Longitudinally Submerged Arc Welding
LSL	Laminated Strand Lumber
LSS	Logistics Support Squadron
LSSB	Large Secondary Side Break
LT	Light
LT	Line Termination
LTB	Lateral Torsional Buckling
LUCR	Land Use Construction Review
LUTR	lower urinary tract reconstruction
LV	Low Voltage
LVF	Low Velocity Fasteners
LW	Light Weight
LWM	Low Water Mark
LX	Lux
M	Motor
M	Motorsport
m	Meter
M	Million
M&E	Mechanical & Electrical
M&F	Male & Female
M&R	Maintenance & Repair
M/BR	Master Bedroom
M/F	male to female
M/S	Meter(s) per Second
M/Supp Rm	Maintennance Supply Room
MAC	Metal Arc Cutting
MAF	Minimum Audible Field
MAH	Mahogany
MAID	Mandatory Asset Information Database
MAINT	Maintenance
MAN	Metropolitan Area Network

MAP	Manufacturing Automation Protocol
MAR	Marble
MARS	Monotone Advection and Reconstruction Scheme
MASCOT	Modular Appproach to Software Construction Operation and Test
MAT	Material
MATL	Material
MAWL	Maximum Allowable Working Load
MAX	Maximum
MB	Millibar(s)
MB	Megabyte
MBR	Master Bedroom Real
MBS	Management Board Secretariat
MC	Moisture Content
MC	Megacycle
MCA	Metal Construction Association
MCAA	Mechanical Contractors Association of America, Inc.
MCAC	Mechanical Contractors Association of Canada
MCC	Motor Control Center (JSC)
MCCI	Mark Carrier Construction Inc
MCCPAP	Massachusetts Construction Classification Premium Adjustment Program
MCGP	Maine Construction General Permit
MCIOB	Membership of the Chartered Institute of Building
MCM	Marine Construction Management
MCS	Maintenance Control Section
MD	Medium Density
MDF	Main Distribution Frame
MDF	Medium Density Fibreboard
MDO	Medium Density Overlaid
MDPE	Medium Density Polyethylene
MDS	Microwave Distribution System
ME	Metal Edge
ME	Mechanical Engineer
MEC	Materials Energy and Constructions
MEC	Model Energy Code
Mech	Mechanical Equipment
MechC	Mechanisation Credit
MED	Medium
MEK	Methyl Ethyl Ketone (butanone)
Memb	Membrane
MEP	Maximum Extent Practicable
MES	Manufacturing Execution System
MEWP	Mobile Elevating Work Platform
MF	Medium Frequency
MF	Melamine-Formaldehyde
MFG	Manufacturers Focus Group
MFG	Manufacturer
MG	Motor Generator
MG	milligram; 1/1000 gram
MGP	Machine Graded Pine
MH	Manhole

MHZ	Megahertz (Megacycles Per Second)
MI	Mile
MIA	Marble Institute of America
MIAC	Mechanical Industry Advisory Committee
MICE	Member of the Institution of Civil Engineers
MIEE	Member of the Institute of Electrical Engineers
MIKE	Microphone
MILCON	Military Construction
MILTFD	Make It Like The Frigging Drawing
MIN	Minute
MIN	Minimum
MIPS	Millions of Instructions Per Second
MIR	Mirror
MIS	Management Information System (OSHA)
MISC	Miscellaneous
MJ	Megajoule
MK	Mark (Navy weapon designation)
MK	Market
MLS	Multi-Layered Steel
mm	Millimeter
mm3	Cubic Millimetre
MMAW	Manual Metal Arc Welding
MMC	Maximum Material Condition
MMU	Memory Management Unit
MN	Magnetic North
MNECH	Model National Energy Code of Canada for Houses
MOC	Materials Of Construction
MOD	Module
MOL	Mole
MOL	Ministry of Labour
MOR	Modulus of Rupture
MOU	Memorandum of Understanding (an MOU between Food & Drug Administratin and a regulatory agency in another country allows mutual recognition of inspections)
MP	Medium Pressure
MP	melting point
MPE	Male Plain End
MPG	Miles Per Gallon
MPH	Miles Per Hour
MPMS	Maintenance Painting Management System
MPR	Multi Planar Reconstruction
MRI	Magnetic Resonance Imaging
MRRD	Ministry Of Rural Reconstruction And Development
MRRR	Ministry of Rehabilitation Reintegration and Reconstruction
MRT	Mean Radiant Temperature
ms	Millisecond
MS4	Municipal Separate Storm Sewer System
MSB	Main Switch Board
MSCE	Master of Science in Civil Engineering
MSDS	Material Safety Data Sheets
MSHA	Mine Safety and Health Administration (US)
MSL	Mean Sea Level

MSSS	Multi-Span Simply Supported
MT	Mountain
MTBC	Mechanical Trades Bargaining Committee
MTBE	Methyl Tertiary Butyl Ether
MTBF	Mean Time Before Failure
MTBM	Mean Time Between Maintenance
MTD	Mounted
MTL	Material Technology Laboratory
MTL	Materials Testing Laboratory
MTL	Material
MTR	Motor Technical Reference
MTR	MOTORCRAFT
MTR	Motorized Transportation Regiment
MTR	Motor Transport Regiment
MTTR	Mean Time To Repair
MUC	Mud Under Construction
MV	Medium Voltage
mV	Millivolt
MW	Megawatt (one million watts)
mW	Milliwatts
MWO	Modification Work Order
MWP	Maximum Working Pressure
N	North
N	Nitrogen
N	Newton
N.E.	North East or Northeast
N.W.	North West or Northwest
N/A	Not Applicable
NA	Not Available
NACE	National Association of Corrosion Engineers
NAHB	National Association of Home Builders
NAHBRC	National Association of Home Builders Research Center
NAPHCC	National Association of Plumbing Heating & Cooling Contractors
NAT	Natural
NATA	National Association of Testing Authorities
NAVD	North American Vertical Datum
NAVFAC	Naval Facilities Engineering Command
NB	Nota Bene. Abbreviation of the Latin expression commonly used to emphasise the importance of a statement, literally meaning 'observe well'. Or less politely and more amusingly, No Bullshit.
NBC	National Building Code of Canada
NBCC	National Buildings Construction Corporation
NBS	National Bureau of Standards (US)
NC	Noise Criteria
NC	Nitrocellulose
NC	Normally Closed
NC	Non-Collapse
NC	No Change
NCC	Naval Construction Contractr
NCCER	National Center for Construction Education and Research
NCCI	National Council For Construction Information
NCCT	Northern California Construction Training

NCIDQ	National Council for Interior Design Qualification
NCMA	National Concrete Masonry Association
NCO	Non-Commissioned Officer
NCPDP	National Construction Productivity Development Project
NCSA	National Centre for Supercomputing Applications
NDE	Non-Destructive Evaluation
NDI	Non-Destructive Inspection
NDT	Nondestructive Test
NE	North-East
NEAT	Novel Environmental Advanced Technology
NEC	National Electrical Code
NECB	National Energy Code of Canada for Buildings
NEF	Noise Exposure Forecast
NEMA	National Electric Manufacturer's Association
NER	National Evaluation Report
NES	National Evaluation Service
NEUT	Neutral
Nf	Noise Frequency
NFBC	National Farm Building Code of Canada
NFC	National Fire Code (Canada)
NFPA	National Fire Protection Association
NFRC	National Federation of Roofing Contractors
NFS	Not Frigging Stable
NG	Natural Gas
NG	No Good
NGC	National Guidelines Clearinghouse
NGS	United States National Geodetic Survey
NGVD	National Geodetic Vertical Datum
NHBRC	National Home Builders Regulatory Council (South Africa)
NI	Nickel
NIBS	National Institute of Building Sciences
NIC	Not In Contract
NIIIP	National Industrial Information Infrastructure Protocols
NIST	National Institute of Standards and Technology
NL	Noise Level
NL	No Liability
NLTF	North LPG Tank Farm (Kuwait) (project name)
NMFS	National Marine Fisheries Services
NNF	Not Normally Flowing
NNI	Nederlands Normalisatie-instituut
NNW	North North-West
NO	Number
NO	Normally Open
NOAA	National Oceanographic & Atmospheric Administration
NOI	Notice of Intent
NOM	Nominal
NPC	Net Present Cost
NPCP	National Photovoltaic Construction Partnership
NPDES	National Pollution Discharge Elimination System
NPS	Non-Point Source pollution

NPT	National Pipe Taper (thread); (cf. NPS)
NPV	Net Present Value {economics}
NR	Noise Reduction
NR	Not Recommended
NRC	Noise Reduction Coefficient
NRC	National Response Center
NRC	National Research Council (Canada)
NRCS	Natural Resources Conservation Service
NS	Near Side
NSAI	National Standards Authority of Ireland
NSW	New South Wales
NT	Northern Territory
NTC	Negative Temperature Coefficient
NTS	Not To Scale
NUC	Neutral Unit of Construction
NURP	National Urban Runoff Program
NVD	Night Vision Device
NVLAP	National Voluntary Laboratory Accreditation Program
NVSD	Non-Vibration Sand Drain
NW	North West
NW	Northwest Wisconsin
NW	Northwest Airlines
NW	Northwest Women's
NWSP	North West Shelf Project
NWT	Noise When Tapped
NYS	Not Yet Started
O	Oxygen
O&G	Oil and Grease
O/C	On Centre
O/M	Operations and Maintenance
O/S	Out Of Service
OA	Overall
OA	Office Automation
OASIS	Organization for the Advancement of Structured Information Systems
OBC	Ontario Building Code
OBDC	Ontario Bid Depository Council
Obix	Open Building Information Exchange
OBS	Organizational Breakdown Structures
OBSROV	Observation class Remotely Operated Vehicle
OC	On Center
OC	Operation Center
OCA	Ottawa Construction Association
OCB	Oil Circuit Breaker
OCCA	Ontario Control Contractors Association
OCCA	Offsite Contemporary Construction for Accommodation
OCCM	Office of Court Construction and Management
OCEW	On Center Each Way
OCI	Orascom Construction Industries
OCR	Optical Character Recognition
OCS	Olori Construction Services

oCS	Ontario Construction Secretariat
OCSA	Ohio Construction Suppliers Association
OD	Outside Diameter
ODA	Open Document Architecture
ODAC	Open Distributed Application Construction
ODBC	Open Database Connectivity
ODIF	Office Document Interchange Format
ODL	Object Definition Language
ODMA	Open Document Management API
ODP	Ozone Depletion Potential
OEA	Office of the Employers' Advisory (for WCB)
OEM	Original Equipment Manufacturer (usually in reference to car parts)
OESC	Ontario Electrical Safety Code
OF	Outside Face
OFC	Ontario Fire Code
OFCC	Ohio Facilities Construction Commission
OFL	Ontario Federation of Labour
OGCA	Ontario General Contractors Association
OGIS	Open Geodata Interoperability Specification
OH	Over Hang
OH	Overhead
OH&S	Occupational Health and Safety
OHBA	Ontario Home Builders' Association
OHSA	Occupational Health and Safety Act
OHTR	optimal Hankel Transform Reconstruction
OHW	Oil-fired Hot Water heater
OIRCA	Ontario Industrial Roofing Contractors Association
OITAB	Ontario Industry Training & Adjustment Board
OJSPC	Ontario Joint Standard Practice Committee
OLE	Object Linking and Embedding (Microsoft communication protocol)
OLRB	Ontario Labour Relations Board
OM	Operational Maintenance
OMA	Object Management Architecture
OMC	Odhisa Mining Corporation
ON	Osterreichisches Normungsinstitut
ONO	Or Near Offer
OO	Object Oriented
OOPL	Object Oriented Programming Language
OOTW	Out Of This World
OP	Opaque
OPC	Ordinary Portland Cement
OPCEA	Ontario Pollution Control Equipment Association
Opg	Opening
OPIA	Ontario Plumbing Inspectors Association, Inc.
OPP	Opposite
OPSD	Ontario Provincial Standard Drawing
OPSS	Ontario Provincial Standard Specification
OPTC	Ontario Pipe Trades Council
or	outside radius
OR	Operations research

ORB	Object Request Broker
OREL	Overload Relay Elevator Loading
ORP	Operational Readiness Platform
ORSA	Orbit Reconstruction Simulation and Analysis
OSCV	Offshore Subsea Construction Vessel
OSCV	offshore support and construction vessel
OSDS	On-Site Disposal System
OSHA	Occupational Safety & Health Administration
OSM&AHG	Ontario Sheet Metal & Air Handling Group
OSV	Outside Stop Valve
OT	Occupational Therapy
OTAB	Ontario Training Adjustment Board
OTW	'OFF THA WALL'
OUT	Outlet
OVFL	OVerFLow
OWST	Organic Waste Storage Tanks
OZ	Ounce
P	Poise
P	Pitch
P2	Pollution Prevention
Pa	Pascal (1N/m2)
PA	Public Addresses
PA	Per Annum
PAC	Plasma Arc Cutting
PAC	Provincial Advisory Committee
PAF	Plant Availability Factor
PAGERR	plan for Albay Glenda early recovery and reconstruction
PAH	Polyaromatic Hydrocarbon
PAM	Poly-Acrylamide
PAP	permit application package
PAPI	Precision Approach Path Indicator (aviation)
PAR	Parallel
PASC	Pacific Area Standards Congress
PASS	Passenger
Pat.	Patio
PATCH	Public Art Through Construction Hoarding
PAW	Plasma Arc Weld
PAX	Private Automatic Exchange
PAYE	Pay-As-You-Earn
Pb	Push-button
PB	Pull Box
PC	Personal computer (host)
PC	Primary Circuit
PC/Rm	Computer Room
PCA	Printed Circuit Assembly
PCB	printed circuit board
PCB	Poly-chlorinated biphenyl
PCC	Portland cement concrete
PCCA	Pennsylvania Construction Codes Academy
PCcM	Prestressed Concrete Construction Manual

PCCO	Prime Contract Change Order
PCE	Prestressed Concrete Erection
PCEPC	Personal Computer for EPC
PCEPC	Petrochemical engineer of Phuong Company
Pch	Porch
PCHWP	Process CHilled Water Pump
PCM	Per Calendar Month
PCM	Providing for Construction Management
PCN	Pre-Construction Notification
PCO	Potential Change Order
PCO	Proposed Change Order
PCR	Project Completion Report
PCRA	Pre-Construction Risk Assessment
PCRD	Post-Conflict Reconstruction and Development
PCS	Portable Construction System™
pctfe	Polychlorotrifluoroethylene
PCWBS	Preliminary Control Work Breakdown Structure
PD	Potential Difference
PD	pump discharge
PDA	Personal Digital Assistant
PDE	Product Data Exchange
PDES	Product Data Exchange Using Step
PDF	Portable Document Format (created by Adobe Acrobat)
PDM	Product Data Management
PDM	Precedence Diagramming Method
PDML	Product Data Markup Language
PDO	Project Design Outline
PDP	Positive Displacement Pump
PDS	Project Data Sheet
PE	Protective Earth
PED	Preconstruction Engineering and Design
PED	Pedestrian and Evacuation Dynamics
PED	Pedestal
PED	Pedestrian
PEEK	Polyetheretherketone
PEI	PolyEtherImide
PEP	PolyEthylene Pipe
PEP	Project Execution Plan
PERF	Performance
PeRF	Performance Requirements Framework
Perp	Perpendicular
PET	Pile Echo Tester
PF	Picofarad
PFC	Power Factor Correction/Correcting
PG	Paving Grade
PG	Pressure Gauge (Report)
PGCA	Prince George Construction Association
PGML	Precision Graphics Markup Language
PGP	Pretty Good Privacy (encryption)
PH	Phase

PHCT	Primary Health Care Team
PI	Performance Indicator
PIA	Peripheral Interface Adaptor
PIB	PolyIsoButylene
PIC	Programmable Interrupt Controller
PII	PROFESSIONAL INDEMNITY INSURANCE
PIM	Personal Information Manager
PIN	Personal Identification Number
PKWY	Parkway
PL	Plate
Pl	plastic
PLC	Power Line Carrier
PLD	Programmable Logic Device
PLF	Plant Load Factor
PM	Preventive Maintenance
PM	Project Manager
PMCS	Project Management Control System
PME	Participatory Monitoring and Evaluation
PMG	Project Management Group
PMI	Project Management Institute
PMMA	Polymethyl Methacrylate
PMP	Project Management Plan
PMS	Power Management System
PMV	Plant Machinery and Vehicles
PN	Part Number (P/N Preferred)
PNC	Preferred Noise Criteria
PNEU	Pneumatic
PNL	Panel
PO	Post Office
PO	Project Originals
POC	Point of Creation
POD	Position, Orientation, and Direction
PORT	Portable
POTW	Publicly Owned Treatment Works
PP	Pages
PPC	Portland Pozzolona Cement
PPFA	Plastic Pipe and Fittings Association
PPP	Public Private Partnership
PPS	Polyphenylene Sulfide
PPSU	polyphenylene sulfone
PPT	Pollution Prevention Team
PPVC	Prefabricated Pre-finished Volumetric Construction
PQ	Pre-Qualification
PR	Pair
PRES	Pressure
PRESS	Pressure
PRI	Primary
PROT	Protection
PRV	Pressure Reducing Valve
PSIG	Pounds per square inch gage

PSTC	Pressure Sensitive Tape Council

PSTC

Pressure Sensitive Tape Council