| Abbreviation | Definition |
|---|---|
| CHCA | Colorado Hill Climb Association |
| CHEA | California Hawaii Elks Association |
| CHEMA | Council of Higher Education Management Associations |
| CHIA | California Healthcare Interpreting Association |
| CHIPA | Community Health Independent Practice Association |
| CHOA | Condominium Home Owners Association |
| CHOBA | Christ's Hospital Old Blues' Association |
| CHPA | Colorado Horseshoe Pitchers Association |
| CHPA | Combined Heat and Power Association |
| CHPA | Consumer Healthcare Products Association |
| CHSA | California Head Start Association |
| CHSA | Canyon Hills Soccer Association |
| CHSA | Capital Horse Show Association |
| CHSA | Capital Horse Shows Association |
| CHSA | Colonial Heights Soccer Association |
| CHSA | Congressional Hispanic Staff Association |
| CHSA | Connecticut Horse Shows Association |
| CHTA | China Home Textile Association |
| CHTA | Contract Heat Treatment Association |
| CIAA | Cayman Islands Athletic Association |