| Abbreviation | Definition |
|---|---|
| DEPA | Danish Environmental Protection Agency |
| DEPA | Development and Environmental Professionals Association |
| DEPA | Development and Environmental Professionals' Association |
| DEPI | Division of Environmental Policy Implementation |
| DEQ | Department Environmental Quality |
| DEQ | Department of Environmental Quality |
| DEQ | Division of Environmental Quality |
| DER | Diesel Emissions Reduction |
| DER | Discrete Emission Reduction |
| DERA | Defense Environmental Restoration Account |
| DERA | Department of Environmental Review and Assessment |
| DERAP | Dealer Environmental Risk Audit Programme |
| DERC | Discrete Emission Reduction Credit |
| DERC | Dorset Environmental Records Centre |
| DERD | Development Environmental Regulations Division |
| DERG | Diesel Emissions Reduction Grant |
| DERM | Division of Environmental Resources Management |
| DERP | Diesel Emissions Reduction Program |
| DERS | Developmental Environmental Rating Scale |
| DERT | Drycleaning Environmental Response Trust |