| Abbreviation | Definition |
|---|---|
| BTC | Basic Training Certificate |
| BTLC | Boston Teacher Leadership Certificate |
| BVC | Bureau Veritas Certification |
| C.D | Diplomatic Corps |
| C/O | Certificate of Occupancy |
| CAA | Certificate Authority Authorization |
| CAA | Certification and Accreditation AcronymAttic |
| CAA | Certification Authority Authorization |
| CAA | Certified Actuarial |
| CAAS | Certified Application Assistance Sites |
| CAC | Certified Aquascape Contractor |
| CACB | Canadian Architectural Certification Board |
| CACE | Certificate in Adult Continuing Education |
| CACM | Certified Anti Corruption Manager |
| CACP | Colorado Advocate Certification Program |
| CADC | Certification for Alcohol and Drug Counselors |
| CADC | Certified Alcohol Drug Counselor |
| CADS | Certified Ambulance Documentation Specialist |
| CAE | Certificate in Advanced English |
| CAE | Certificate Of Advanced English |