| Abbreviation | Definition |
|---|---|
| CAS | Children's Aid Society |
| CAS | Childrens' Advocacy Services |
| CAT | Central Administrtive Tribunal |
| CATA | Capital Area Transportation Authority |
| CATA | Crawford Area Transportation Authority |
| CATS | Central Accounts for Traffic Safety |
| CATS | Charlotte Area Transit System |
| CATS | Continuing Adequate Taxes and Services |
| CAWD | Central Arkansas Water District |
| CAWD | Civil Administration Works Division |
| CB | Colombie-Britannique |
| CB | Compensation Board |
| CB | Condition Bail |
| CB | Council Bluffs, Iowa |
| CBC | Cantonment Board Clifton |
| CBCC | California Black Chamber of Commerce |
| CBD | Central Boundary Dispute |
| CBDI | Composite Block Development Index |
| CBHPP | Children Born to HIV-Positive Parents |
| CBI | California Bureau of Investigation |