| Abbreviation | Definition |
|---|---|
| DSWCD | Delaware Soil and Water Conservation District (est. 1944; Ohio) |
| DVCA | Danum Valley Conservation Area |
| DWCF | Delaware Watershed Conservation Fund |
| DWCO | Deputy Waterways Conservation Officers |
| EACA | Energy Awareness and Conservation Assessments |
| ECBC | Energy Conservation Building Code |
| ECCB | European Committee for Conservation of Bryophytes |
| ECCB | European Congress of Conservation Biology |
| ECCD | Erie County Conservation District |
| ECDM | Energy Conservation and Demand Management |
| ECEP | Energy Conservation and Environment Project |
| ECER | Energy Conservation and Emission Reduction |
| ECGL | Ecological and Conservation Genomics Laboratory |
| ECNC | European Centre for Nature Conservation |
| ECOP | Energy Conservation Observation Platform |
| ECP | Emergency Conservation Program |
| ECP | Energy Conservation Plan |
| ECPN | Emerging Conservation Professionals Network |
| EDCV | East Devon Conservation Volunteers |
| EEBC | Ecology Evolution Behavior and Conservation |