| Chemical Agent Resistive Coating | Academic & Science |
| Chemical Agent Resistant Coatings | Academic & Science |
| Chemical Agent Resistant Coating | Academic & Science |
| Climate Assessment And Response Committee | Academic & Science |
| California Aids Research Center | Academic & Science |
| Cyber Assist Research Center | Academic & Science |
| Center for Advanced Research Computing | Academic & Science |
| Comprehensive Alcohol Research Center | Academic & Science |
| Campus Academic Resources Committee | Academic & Science |
| Coastside Amateur Radio Club | Academic & Science |
| Career and Advising Resource Center | Business |
| Certified Addiction Recovery Coach | Business |
| Coconino Amateur Radio Club | Community |
| Columbia Amateur Radio Club | Community |
| Columbus Amateur Radio Club | Community |
| Club Atlético Rosario Central | Community |
| Community Arts Resource Collection | Community |
| Community Aquatic and Recreation Complex | Community |
| Community Affairs Resource Center | Community |
| Community Affairs and Resource Center | Community |
| Community Assessment Resource Center | Community |
| Community Assessment and Referral Center | Community |
| Community Aquatic Recreation Center | Community |
| Community Assessment and Resource Center | Community |
| Cultural Awakening Resource Card | Community |
| Cultural Awareness Resource Center | Community |
| Chicago Association for Retarded Citizens | Community |
| Club Atl?ico Rosario Central | Community |
| Computer Assisted Reference Center | Computing |
| Colorado Automobile Racing Club | General |
| Club Alfa Romeo Catalunya | General |
| Cooperative Agricultural Research Center | General |
| Central Agricultural Research Center | General |
| Connecticut Aids Residence Coalition | General |
| Commercial Arbitration Resource Collection | General |
| Claim Adjustment Reason Codes | General |
| Customer Acquisition and Retention Cost | General |
| Cape Alfa Romeo Club | General |
| Clean Air Resource Center | Governmental |
| Central Asian Resource Centre | International |
| Claim Adjustment Reason Code | Medical |
| Canadian Arctic Resources Committee | Regional |