| Abbreviation | Definition |
|---|---|
| CBWG | Cord Blood Working Group |
| CBWG | Cross Border Working Group |
| CCWG | Chemistry Climate Working Group |
| CCWG | Clean Cargo Working Group |
| CCWG | Country Codes Working Group |
| CCWG | Cross Community Working Group |
| CEWG | Cancer Expert Working Group |
| CEWG | Centers Evaluation Working Group |
| CEWG | Civic Education Working Group |
| CEWG | Clearance and Exemption Working Group |
| CEWG | Community Engagement Working Group |
| CEWG | Consultative Expert Working Group |
| CEWG | Corporate Engagement Working Group |
| CEWG | Crypto Economy Working Group |
| CISPA | Coalition of Independent Salvage Pools of America (Las Vegas, NV) |
| CLWG | Community Liaison Working Group |
| CLWG | Consolidated Literacy Working Group |
| CLWG | Crop Logistics Working Group |
| CMWG | Case Management Working Group |
| CMWG | Cash and Market Working Group |