| Abbreviation | Definition |
|---|---|
| CTI | Carrier Telephone Industries |
| CTMB | Carson Tahoe Membership Board |
| CTN | City Transformation Network |
| CTPA | California Travel and Park Association |
| CTRF | Commonwealth Technology Research Fund |
| CTRP | California Teacher Recruitment Program |
| CTRP | Connecticut Teacher Retirement Program |
| CTTP | Central Texas Turnpike Project |
| CTY | County |
| CUCF | City University Construction Fund |
| CUIA | Cities United for Immigration Action |
| CUP | Conditional Use Permit |
| CUPA | Consolidated Unified Program Agency |
| CUS | Continental United States |
| CVAT | Consumption Value Added Tax |
| CVC | California Vehicle Code |
| CVRD | Cowichan Valley Regional District (BC) |
| CVSD | Castro Valley Sanitary District |
| CWA | Civil Works Administration |
| CWC | California Walnut Commission |