Last edited 25 Aug 2026

Construction industry acronyms - C

This article presents a list of construction industry acronyms beginning with 'C'.

For other letters click on the list below:

A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z

[edit] C

C - Cill Height

C of E - Church of England

C to C - Centre to Centre

C&D - Construction and Demolition

C&DW - Construction & Demolition Waste.

C&I - Commercial And Industrial

C&RT - Canal & River Trust

c. - Circa

C/C - Centre to Centre

c/o - Care Of

CA - Certifying authority

CA - Community Area

CA - Competent Authority

CA - Confidentiality Agreement

CA - Conservation Area

CA - Consultancy Agreement

CA - Contract Administrator

CA - Control Account

CAA - Clean Air Act

CAA - Commonwealth Association of Architects

CAA - Conservation Area Audit

CAAV - Central Association Of Agricultural Valuers

CAAV - The Central Association of Agricultural Valuers

CAB - Cabinet

CABA - Continental Automated Buildings Association CABA.

CABE - Chartered Association of Building Engineers

CABE - Commission for Architecture and the Built Environment (See Design Council)

CABR - Chinese Academy of Building Research

CAC - Cold Aisle Containment

CAC - Conservation Area Consent

Caco - calcium carbonate

CAD - Computer Aided Design

CAD/CAM - Computer Aided Design / Computer Aided Manufacturing

CADD - Computer Aided Design and Draughting

CADR - Clean air delivery rate

CAE - Computer Aided Engineering

CAF - Cost Analysis Framework

CAFM - Computer Aided Facility Management

CAGR - Compound Annual Growth Rate

CAI - Cold Air Intake

CAI - Contract Administrator's Instructions

CAM - Computer Aided Manufacturing

CAM - Control Account Manager

CAN - Contract Award Notice

CAP - Common Agricultural Policy

CAP - Commonwealth Association of Planners

CAP - Conflict Avoidance Pledge

CAP- Climate-Altering Pollutants

CAPEX - Capital Expenditure

CAPS - Computer aided planning system

CAPT - Continuous Accessible Paths of Travel

CAR - Cladding Assurance Register

CAR - Controlled Activity Regulations

CARES. - Certification Authority for Reinforcing Steels

CARRS - Civil Asset Register and electronic Reporting System.

CARS - Conservation Area Regeneration Scheme

CAS - Cheshire Agricultural Society

CAS - Common Assessment Standard

CaSL - Cancelations and Significant Lateness Measure

Caso - calcium sulphate

CAT - Cable Avoidance Tool

Cat - Category (i.e. Cat 6 Cable)

CATS - Credit Award Transfer System

CAV - Constant Air Volume.

CAWR - Control of Asbestos at Work Regulations

CAWS - Common Arrangement of Work Sections

CAZ - Central Activities Zone

CAZ - Clean Air Zone

CB - Carbon Budget

CBA - Cost-benefit analysis

CBA - Council for British Archaeology

CBAM - Carbon Border Adjustment Mechanism

CBC - Church Buildings Council

CBCA - Chilled Beams and Ceilings Association

CBDM - Climate Based Daylight modelling

CBF - Close Boarded Fence

CBGM - cement bound granular mixture

CBI - Confederation of British Industry

CBM - Coal Bed Methane

CBM - Condition-Based Maintenance

CBO - Community Based Organisation

CBOA - Commercial Boat Operators Association

CBP - Construction best practice

CBPP - concrete block permeable paving

CBR - California bearing ratio

CBR - Chemical, Biological, Radiological

CBW - Concrete Block Wall

CC - Centre to Centre

CC - Clear Coat (paint)

CC - Climate Change

CC - Compliance Criteria

CC - Construction Confederation

CC - Contractor Client

CCA - Coastal Character Assessment

CCA+R - Climate Change Adaptation And Resilience

CCC - Committee On Climate Change / Climate Change Committee

CCC - Confederation of Construction Clients

CCC - Current Construction Costs

CCD - Climate-Compatible Development

CCE - Computer controlled equipment

CCF - Construction Clients Forum

CCG - Clinical Commissioning Group

CCGT - Close Cycle Gas Turbine

CCGT - Combined Cycle Gas Turbine

CCGT - Combined Cycle Gas Turbine

CCH - Construction and Housing Code CCH (French building code)

CCHP - Combined Cooling, Heating & Power

CCHRBA - Culcheth And Croft Horse Riders And Bridleways Association

CCI - Community Conservation Index

CCL - Climate Change Levy

CCM - Copper Composite Material

CCNP - Construction Compliance Notification Plan (Scotland HRBs)

CCNSG - Client Contractor National Safety Group

CCOU - Construction Central Operations Unit

CCP - Contractor's Change Proposals

CCPI - Code for Construction Product Information

CCR - Climate Change Resilience

CCRA - Climate Change Risk Assessment

CCS - Carbon Capture and Storage

CCS - Considerate Constructors Scheme

CCS - Crown Commercial Service

CCS/U - Carbon Capture and Storage or Use

CCT - Cheshire Canal Trust

CCT - Circuit

CCT - Compulsory Competitive Tendering

CCT - Construction Collaboration Technology

CCT - Correlated Colour Temperature

CCTV - Closed

CCTV - Closed Circuit Television

CCU - Carbon Dioxide Capture and Utilisation.

CCU - Cooker Control Unit

CCUS - Carbon Capture and Storage

CCUS - Carbon Capture Use and Storage / Carbon Capture Utilisation and Storage

CD - Carbon Monoxide Detector

CD - Completion Date

CD - Construction Document

CD - Consultation Document

CD - Contract Date

CD/C&D - Construction and Demolition

CDA - Client Design Advisor

CDA - Confidentiality Disclosure Agreement

CDA - Critical Drainage Area

CDC - Cherwell District Council

CDCC - Centralised Data Communication Company

CDD - Cooling Degree Days

CDE - Common Data Environment

CDEL - Capital Departmental Expenditure Limit

CDEW - Construction, Demolition And Excavation Waste

CDF - Common Data Format

CDM - Clean Development Mechanism

CDM - Construction (Design and Management) Regulations

CDMA - Collision Detection Multiple Access

CDMC - Construction Design Management Coordinator

CDP - Contractor's Design Portion

CDPA - Copyright, Design and Patents Act 1988

CDR - Carbon Dioxide Removal

CDRP - Community Design Review Panel.

CDS - Cold Drawn Steel

CE - Communauté Européenne, sometimes taken to stand for Conformité Européenne

CE - Conditions of Engagement

CE - Constructing Excellence

CEA - Cost-Effectiveness Analysis

CECA - Civil Engineering Contractors Association

CED - Community Economic Development

CEEC - Central and Eastern European countries

CEEQUAL - The Civil Engineering Environmental Quality Assessment & Award Scheme

CEFA - Civil Examination Framework Agreement

CEGB - Central Electricity Generating Board

CEH - Centre for Ecology adn Hydrology

CEM - Clean Energy Ministerial

CEM I - Portland Cement

CEMFAW - Control Of Electromagnetic Fields At Work

CEMP - Construction Environmental Management Plan

CEN - Comité Européen de Normalisation

CEng - Chartered Engineer

CERT - Carbon Emissions Reduction Target

CES - Conveyance Estimation System

CESMM - Civil Engineering Standard Method of Measurement

CESMM3 - Civil Engineering Standard Method of Measurement, Third Edition

CESMM4 - Civil Engineering Standard Method of Measurement, Fourth Edition

CESP - Community Energy Saving Programme.

CESWI - Civil Engineering Specification for the Water Industry

CET - Controlled Emission Toilet

CET - Circular Economy Taskforce

CETF - Circular Economy Task Force

CFA - Community Forum Area

CFA - Continuous Fight Augured

CfBT - Campaign For Better Transport

CFC - Chlorofluorocarbon

CFD - Climate-related Financial Disclosure

CFD - Computational Fluid Dynamics

CfD - Contracts for Difference

CfD - Contracts for Difference

CFL - Compact Fluorescent Lamp

CFL - Counter flashing

CFMP - Catchment Flood Management Plan

CFR - Constant Flow Regulator

CFRP - Carbon Fibre Reinforced Plastic

CFRP - Carbon Fibre Reinforced Polymer

CfSH - Code for Sustainable Homes

Cfu - Colony forming unit

CFW - Continuous Fillet Weld

CGA - Coarse-Graded Aggregate

CGI - Computer Generated Imagery

CGI - Corrugated Galvanised Iron

CGN - China General Nuclear Corporation

CGS - Clean Growth Strategy

CGT - Capital Gains Tax

CGT - Cheshire Gardens Trust

CGW - Computer-generated works

CH - Ceiling Height

CH - Communal heating.

CH - Cooker Hood

CHANs - Chemical Hazard Alert Notices

CHAS - Contractors Health and Safety Assessment Scheme

ChDC - Chiltern District Council

CHNL - Channel

CHP - Combined Heat And Power

CHPQA - Combined Heat and Power Quality Assurance

CHS - Circular Hollow Section

CHSW - Construction (Health, Safety and Welfare) Regulations 1996

CHW - Chilled Water

CI - Cast Iron

CI - Construction Inspector

CI - Continual Improvement

CI - Critical Information

CI - Cumulative Illuminance

CI/SfB - Construction Index / Samarbetskommitten for Byggnadsfragor

CIAT - Chartered Institute of Architectural Technologists

CIBSE - Chartered Institution of Building Services Engineers

CIC - Community Interest Company

CIC - Construction Industry Council

CICAIR - Construction Industry Council Approved Inspectors Register

CICES - Chartered Institute of Civil Engineering Surveyors

CIE - Commission Internationale de l'Éclairage

CIE - Control and Indicating Equipment

CIEEM - Chartered Institute Of Ecology And Environmental Management

CIF - Corrugated Iron Fence

CIfA - Chartered Institute For Archaeologists

CIGA - Cavity Insulation Guarantee Agency

CIH - Construction Innovation Hub

CIL - Community Infrastructure Levy

CILL - Construction Industry Law Letter

CIMAR - Construction Industry Model Arbitration Rules

CIO - Charitable Incorporated Organisation

CIOB - Chartered Institute of Building

CIP - Cast In Place

CIP - Continuous Improvement Process

CIPP - Cured In Place Pipe

CIRIA - Construction Industry Research And Information Association

CIS - Construction Industry Scheme

CISAC - Construction Industrial Strategy Advisory Council

CITB - The Construction Industry Training Board

CITE - Construction Industry Trading Electronically

CJ - Construction Joint

CJ - Control Joint

CL - Ceiling Level

CL - Centre Line

CL - Cover Level

CL:AIRE - Contaminated Land: Applications In Real Environments

CLA - Country Land And Business Association

CLASP - Consortium of Local Authorities Special Programme

CLAW - Control of Lead at Work Regulations

CLC - Construction Leadership Council.

CLEA - Contaminated Land Exposure Assessment

CLEUD - Certificate of Lawfulness of Existing Use or Development

CLF - Chain Link Fence

CLG - Ceiling

CLG - Department for Communities and Local Government (now the Ministry of Housing, Communities and Local Government (MHCLG)

CLGF - Commonwealth Local Government Forum

CLGHP - Closed Loop Geothermal Heat Pump

CLI - Employers' Liability Compulsory Insurance Act 1969

CLOCS - Construction Logistics and Community Safety

CLoHAM - Central London Highway Assignment Model

CLOPUD - Certificate of Lawfulness of Proposed Use or Development

CLP - Classification Packaging and Labelling

CLP - Community Led Planning

CLP - Construction Logistics Plan

CLP - Cost Led Procurement

CLR - Clearance

CLR - Contaminated Land Report

CLS - Canadian Lumber Standard

CLT - Cross Laminated Timber

CLTE - Coefficient of Linear Thermal Expansion

CLVIA - Cumulative Landscape and Visual Impact Assessment

CM - Capacity Market

CM - Case manager

CM - Coating Metallic

CM - Condition Monitoring

CM - Construction Manager

CM - Controlled Motorway

CM - Corrugated Metal

CM - Cracked Masonry

CM/A - Construction Management Appointment

CM/TC - Construction Management Trade Contract

CMA - Competition and Markets Authority

CMCP - Certified Manager of Commercial Properties

CME - Chloromethyl ether

cMEV - Centralised Mechanical Extract Ventilation

CML - Council of Mortgage Lenders

CMP - Conservation Management Plan

CMP - Corrugated Metal Pipe

CMPR - Construction Management Process Reengineering

CMRS - Central Meter Registration Service

CMS - Cable Management System

CMS - Client Monitoring Services

CMS - Common Minimum Standards

CMS - Construction Method Statement

CMT - Client Monitoring Team

CMT - Construction Management Technology

CMU - Capacity Market Unit

CMU - Cement Masonry Unit

CMU - Concrete Masonry Unit

CN - Contest Notice

CN - Contract Notice

CN - Cyanide

CNC - Computer Numerical Control

CNCA - Corporate Natural Capital Accounting

CNG - Compressed Natural Gas

CNI - Critical National Infrastructure

CNN - The County Councils Network

CNS - Chrome-Nickel Steel

CO - Carbon monoxide

CO - Care Of

CO - Change Order

CO - Conservation Officer

CO2 - carbon dioxide

CoA - Coal Authority

COB - Clear over Base (paint)

COB - Close of Business

COBie - Construction Operations Building Information Exchange

COC - Certificate of Completion

COC - Certificate of Compliance

COC - Certificate of Conformance/Conformity

CoC - Chain of Custody

CoC - Code of Conduct

CoCC - Committee on Climate Change

CoCP - Code Of Construction Practice

COD - Chemical Oxygen Demand

CODE - Cost Optimal Domestic Electrification

CoE - Church Of England

CoE - Communities of Experience

COGS - Cost Of Goods Sold

COHb - Carboxyhaemoglobin

COI - Certificate of Immunity

COI - Certificate of Immunity (listed buildings)

COIN - Corporate Operational Information

COINS - Constructive Objects and the INtegration of processes and Systems

COL - Certificate of Lawfulness (listed buildings)

COL - Column

COM - Customer's Own Material

COMAH - Control Of Major Accident Hazards

COMEAP - Committee of Medical Effects of Air Pollution

COMEAP - Committee On The Medical Effects Of Air Pollutants

COMP - Change Order Management Procedure

COMPR - Compressible

CONC - Concrete

CONIAC - Construction Industry Advisory Committee (part of HSE)

ConLR - Construction Law Reports

CONT - Continuous

Convention - On Climate Change

COO - Certificate of Origin.

Co-Op - Co-Operative

COP - Car Operation Panel

COP - Close of Play

CoP - Coefficient of Performance

CoP - Communities of Practice

COP - Conference of Parties

COP21 - 21st Conference Of The Parties Of The United Nations Framework

COPA - Control of Pollution Act

CoPA - Control Of Pollution Act 1974

COR - Change Order Request

CORGI - Council for Registered Gas Installers

COSHH - Control of Substances Hazardous to Health

COT - Certificate of Title

COT - Commercial Off The Shelf

COT - Computer Operator Terminal

COT - Conditions of Tender

COT - Customer-Owned Tooling

COTAC - Council on Training in Architectural Conservation,

COTS - Commercial Off The Shelf

COVID - Corona Virus Disease

CoW - Clerk of Works

CP - Cadastral Parcel

CP - Cement Particle

CP - Code of Practice

CP - Communications provider

CP - Conservation Plan

CP - Construction Permit

CP - Contractors Proposals

CP - Critical Path

CP - Compliance Plan (Scotland HRBs)

CPA - Construction Products Association

CPA - Compliance Plan Approach (Scotland)

CPA - Critical Path Analysis

CPAP - Construction Product Approval Process

CPB - Central Purchasing Body

CPC - Chemical Protective Clothing

CPD - Construction Products Directive

CPD - Continued Professional Development

CPD - Cupboard

CPDA - Crime Prevention Design Advisor

CPE - Chlorinated Polyethylene (water tanks)

CPET - Central Point of Expertise on Timber

CPF - Concrete Panel Fence

CPI - Construction Product Information

CPI - Co-ordinated Project Information

CPIC - Construction Project Information Committee

CPIx - Construction Project Information Exchange

CPL - Classification, Packaging and Labelling of Dangerous Substances Regulations 1984

CPL - Continuous Pressure Laminate

CPM - Construction Project Management

CPM - Construction Project Manager

CPM - Critical Path Method

CPM - Compliance Plan Manager (Scotland HRBs)

CPMS - Construction Project Management Software

CPN - Critical Path Network

CPO - Compulsory Purchase Order

CPP - Construction Phase Plan

CPR - Civil Procedure Rules

CPR - Construction Products Regulation

CPR - Consumer Protection from Unfair Trading Regulations

CPRE - Campaign To Protect Rural England

CPS - Competent Persons Scheme (Building Control)

CPS - Concrete Paving Slabs

CPS - Carbon Price Support

CPT - Carpet

CPTED - Crime Prevention Through Environmental Design

CPU - Central Processing Unit

CPVC - Chlorinated Polyvinyl Chloride

CPZ - Controlled Parking Zone

CQA - Construction Quality Assurance.

CQP - Construction Quality Planning

CR - Clash Rendition

CRA - Corrosion resistant alloy

CRAC - Computer Room Air Conditioning

CRB - Community Right to Build

CRBO - Community Right to Build Order

CRC - Carbon Reduction Commitment

CRC - Coloured radiative cooler

CRDP - Climate-Resilient Development Pathways

CRDS - Certified Remedial Damp Surveyor

CRE - Contract Requirements Environment

CRE - Corporate Real Estate

CRe - Customer Representative

CRECI - Commercial Real Estate Certification Institute

CRF - Change Request Form

CRI - Colour Rendering Index

CRISP - Construction Research and Innovation Strategy Panel (now the National Platform for the Built Environment)

CRL - Chancel Repair Liability.

CRM - Conservation, Repair & Maintenance

CRM - Customer Relationship Management

CRMP - Corporate Relationship Management Plan

CRN - Calculation Of Railway Noise

CRO - Construction Related Occupation

CROOF (T4) - Second highest UK / Euro Fire resistance class for roofs (see also BROOF, DROOF and FROOF)

CROME - Construction, Renewal, Operation, Maintenance and End-of-life costs

CROSS-UK - Collaborative Reporting for Safer Structures UK

CRoW - Countryside and Rights of Way (Act, 2000)

CRP - Community Review Panel

CRP - Corporate Resolution Planning

CRREM - Carbon Risk Real Estate Monitor

CRS - Cold Rolled Steel

CRT - Canal & River Trust

CRT - Cathode Ray Tube

CRtB - Community Right to Build

CRTN - Calculation Of Road Traffic Noise

CRW - Concrete Retaining Wall

CS - Cast Steel

CS - Cloud Survey (drawing)

CS - Commissioning Set

CS - Construction Safety

CS - Core Strategy

CS - Cross Section

CSA - Climate-Smart Agriculture

CSA - Contract Sum Analysis

cSAC - candidate Special Area of Conservation

CSCS - Construction Skills Certificate Scheme

CSCW - Computer-supported Cooperative Work

CSF - Critical Success Factors

CSG - Competency Steering Group

CSH - Code for Sustainable Homes

CSIC - Cambridge Smart Infrastructure and Construction

CSM - Conceptual Site Model

CSNP - Centralised Strategic Network Plan

CSO - Combined Sewer Overflow

CSP - Canadian Softwood Plywood

CSP - Concentrated Solar Power

CSR - Comprehensive Spending Review

CSR - Corporate Social Responsibility

CSRE - Cement-stabilised rammed earth

CSRT - Certified Surveyor in Remedial Treatment

CSS - Cladding Safety Scheme

CSS - Countryside Stewardship Scheme

CSSW - Certified Surveyor in Structural Waterproofing

CSUS - Chinese Society for Urban Studies

CSW - Ceramic Sanitary Ware

CSWIP - Certification Scheme Weldment Inspection Personnel

CT - Ceramic Tile

CT - Consultant Team

CTA - Cinema Theatre Association

CTBO - Carbon Takeback Obligation

CTC - Centre to Centre

CTDS - Connection Tunnel Drive Site

CTE - Connect to Existing

CTF - Construction Task Force

CTMP - Construction Traffic Management Plan

CTPV - Coal Tar Pitch Volatiles

CTR - Centre

CTRL - Channel Tunnel Rail Link

CTSA - Counter Terrorism Security Adviser

CU - Column Under

CU - Condenser / Condensing Unit

CU - Consumer Unit

CUB - Central Utility Block

CUSC - Connection and Use of System Code

CV - Calorific Value.

CV - Commissioning Valve

CV - Contingent Valuation

CV - Cost Variance

CV - Curriculum Vitae

CVA - Clear Ventilation Area

CVA - Company Voluntary Arrangement

CVAS - Controlled Ventilation Area System

CVCHA - Castle Vale Community Housing Association

CVD - Constant Volume Damper

CVI - Confirmation of Verbal Instruction

CVL - Creditors Voluntary Liquidation

CVR - Cost Value Reconciliation

CVTRA - Castle Vale Tenants & Residents Alliance

CW - Cold Water

CWE - Collaborative Working Environment

CWFT - Classification Without Further Testing

CWI - catchment wetness index

CWP - Circulating Water Pump

CWR - Cold Water Riser

CWS - Cold Water Services

CxM - Commissioning manager

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