| Abbreviation | Definition |
|---|---|
| CFPC | California Forest Pest Council |
| CFPC | Carbon Footprint of Petrol Corporations |
| CFRAM | Catchment Flood Risk Assessment and Management (Ireland) |
| CFS | Centre for Food Safety |
| CFSP | Cambodian Fuelwood Savings Project |
| CGAW | Cal Green At Work |
| CGEP | Center for Global Environmental Policy |
| CGN | Code Green Networks |
| CGRPP | Core Group on River Pilot Projects |
| CGS | Code Green Solar |
| CGW | Contaminate Ground Water |
| CGWI | Combat Global Warming Initiative |
| CH | Conservation Halton [Ontario, Canada] |
| CHEC | Charlotte Harbor Environmental Center |
| CHEC | Childrens Health Environmental Coalition |
| CHEC | Combustion and Harmful Emission Control |
| CHED | Center for Health and Environmental Data |
| CHEER | Culture Health Education Environmental Resources |
| CHERT | Comprehensive Humanitarian Environmental Response Team |
| CHES | College of Human Environmental Sciences |