| Abbreviation | Definition |
|---|---|
| CDG(CPL) | Carriage of Dangerous Goods by Road and Rail (Classification, Packaging and Labelling) Regulations 1994 |
| CEMP | Construction Environmental Management Plan |
| CEN | Comite Europeen de Normalisation (European Committee for Standardisation) |
| CEWEP | Confederation of European Waste-to-Energy Plants |
| CFC | Chlorofluorocarbon |
| CfSH | Code for Sustainable Homes |
| CHEM | Container Handling Equipment Manufacturers |
| CHIP | Chemicals (Hazard Information and Packaging for Supply) Regulations |
| CIWMB | California Integrated Waste Management Board |
| CLO | Compost-like Output |
| CLR | Contaminated Land Register |
| CNEA | Clean Neighbourhoods and Environment Act |
| COD | Chemical Oxygen Demand or Certificate of Destruction |
| COPA | Control of Pollution Act |
| COPLR | Code of Practice for Litter and Refuse |
| CoRWM | Committee on Radioactive Waste Management |
| COSHH | Control of Substances Hazardous to Health |
| CoTC | Certificate of Technical Competence |
| CRC | Community Recycling Centre |
| CRC | CRC Energy Efficiency Scheme (formerly the Carbon Reduction Commitment) |