| Abbreviation | Definition |
|---|---|
| CARI | Colorado Association Of Robbery Investigators |
| CARP | Canadian Association for Retired Persons |
| CARS | Consortium for Advanced Radiation Sources |
| CARSE | Colorado Association of Road Supervisors and Engineers |
| CARW | Commercial Association of Realtors Wisconsin |
| CAS | Casualty Actuarial Society |
| CASA | Community And School Association |
| CASAC | Canadian Association Of Sexual Assault Centres |
| CASD | Consumer Attorneys of San Diego |
| CASE | Centre for Analysis of Social Exclusion |
| CASG | Cairns Autism Spectrum Group |
| CASG | Custom Automated Systems Group |
| CASH | Canadian Association For School Health |
| CASI | Canadian Association Of Snowboard Instructors |
| CASL | Canadian Association For School Libraries |
| CASL | Christian Association Of Student Leaders |
| CASL | Colorado Association Of School Libraries |
| CASRO | Council of American Survey Research Organizations |
| CAST | Chinese Association For Science And Technology |
| CAST | Commercial Aviation Safety Team |