| Abbreviation | Definition |
|---|---|
| CCTA | Chittenden County Transportation Authority |
| CCTA | Contra Costa Transportation Authority |
| CCTC | California Commission on Teacher Credentialing |
| CCTD | Central Connecticut Tourism District |
| CCWA | Carroll County Watershed Authority |
| CCWA | Central Coast Water Authority |
| CCWA | Clayton Country Water Authority |
| CCWA | Clayton County Water Authority |
| CD | Castle Douglas, Scotland |
| CDA | Capital Development Authority |
| CDA | City Demonstration Agency |
| CDAA | California Disaster Assistance Act |
| CDBG-P | Community Development Block Grant Program |
| CDC | California Department of Corrections |
| CDC | Commission for Damage Control |
| CDC | Cotswold District Council |
| CDCA | Civil Development Center Alternative |
| CDCA | Community Design Center of Atlanta |
| CDCC | Central Delaware Chamber of Commerce |
| CDCR | California Department of Corrections and Rehabilitation |