| Abbreviation | Definition |
|---|---|
| BUV | Baptist Union of Victoria |
| BUV | Baptist Union of Victoria?? |
| BUW | Baptist Union of Wales |
| BWIU | Building Workers' Industrial Union |
| BWU | Barbados Workers Union |
| CAC | Central Arbitration Committee |
| CAEU | Central Asian Economic Union |
| CAIR | Confidential And Impartial Resolution |
| CAIWU | Cleaners and Allied Independent Workers Union |
| CARE | Coalition for Auto Repair Equality |
| CATU | Ceramic and Allied Trades Union |
| CAUP | Chess Arbiters Union of the Philippines |
| CAUT | Canadian Association of University Teachers |
| CAW | Canadian Auto Workers |
| CAWU | Central Amalgamated Workers' Union |
| CBA | Collective Bargaining Agreement |
| CBC | Coordinated Bargaining Councils |
| CBCU | Cabot Boston Credit Union |
| CBCU | Cape Breton Credit Union |
| CBCU | City of Boston Credit Union |