| Abbreviation | Definition |
|---|---|
| CLAAC | Campus Laboratory Animal Acquisitions Coordinator (UCSD) |
| CLAMS | Comprehensive Lab Animal Monitoring System |
| CLAW | Community Led Animal Welfare |
| CMAH | Coal Mountain Animal Hospital |
| CMAR | Certified Manager of Animal Resources |
| CODAR | Castle of Dreams Animal Rescue |
| CPAA | Central Pennsylvania Animal Alliance |
| CPAH | Clinton Parkway Animal Hospital |
| CPAH | Colony Park Animal Hospital |
| CPCSEA | Committee for the Purpose of Control And Supervision of Experiments on Animals |
| CPCSEA | Committee for the Purpose of Control and Supervision on Experiments on Animals |
| CPHA | Campaigning to Protect Hunted Animals |
| CR | Catch and Remove |
| CRACC | Cedar Rapids Animal Care and Control |
| CRAR | Center for Research Animal Resources |
| CROW | Clinic for Rehabilitation Of Wildlife |
| CRPA | Centro Ricerche Produzioni Animali |
| CSAH | Coral Springs Animal Hospital |
| CSAP | Columbia Students for Animal Protection |
| CSAW | Center for the Science of Animal Welfare |