| Abbreviation | Definition |
|---|---|
| CAMC | Conservation Authorities Moraine Coalition |
| CANUE | Canadian Urban Environmental Health Research Consortium |
| CAPITA | Center for Air Pollution Impactand Trend Analysis |
| CAPP | Citizens Against Plane Pollution |
| CAPP | Compliance Assurance And Pollution Prevention |
| CAPS | Collaborative Awareness Platform for Sustainability |
| CAR | Corrective Action Report |
| CARE | California Artificial Reef Enhancement |
| CARE | Center for Atmospheric Research Experiments |
| CARE | Centre for Atmospheric Research Experiments |
| CARE | Citizens Against Ruining our Environment |
| CARE | Collection and Recycling Event |
| CARE | Consortium for Automotive Recycling |
| CARE | Contamination Assessment and Remediation of the Environment |
| CARE | Critical Analysis Reporting Environment |
| CAREC | Canadian Auto Recyclers' Environmental Code |
| CARES | Center for Applied Research and Environmental Systems |
| CARI | Canadian Associations of Recycling Industries |
| CAS | Conventional Activated Sludge |
| CASA | Clean Air Strategic Alliance |