| Abbreviation | Definition |
|---|---|
| COSH | Committee for Occupational Safety and Health |
| COSO | Committee of Sponsoring Organisations |
| COSO | Committee of Supporting Organizations |
| COSO | Committee on Secure Organizations |
| COSPAR | Committee on Space Research |
| COSR | Committee on Social Responsibility |
| COSR | Committee on Student Records |
| COSR | Committee on Supplier Ratings |
| COSSA | Committee on Student Safety and Accountability |
| COSTI | Committee On Scientific and Technical Information |
| COTE | Committee On The Environment |
| COTF | Committee On The Future |
| COTI | Committee of the Islands |
| COTO | Committee of Transport Officials |
| COTS | Committee on Temporary Shelter |
| COTW | Committee Of The Whole |
| COV | Committee of Visitors |
| COWF | Committee on Women Faculty |
| COWR | Committee on Womens Rights |
| CPAAC | Chilliwack Public Art Advisory Committee |