| Abbreviation | Definition |
|---|---|
| ERG | Environmental Restoration Group |
| ERHC | Environmental Remediation Holding Corporation |
| ERI | Environmental Resilience Institute |
| ERI | Environmental Response Inventory |
| ERI | Environmental Risk Innovations |
| ERIM | Environmental Research Institue Of Michigan |
| ERIS | Environmental Restoration Information System |
| ERIS | Environmental Risk Information |
| ERIS | Environmental Risk Information Services |
| ERL | Environmental Research Letters |
| ERM | Effects Range Median |
| ERM | Enterprise Refrigerant Management |
| ERM | Environmental Resources Management |
| ERMA | Environmental Response Management Application |
| ERMA | Environmental Risk Management Authorithy |
| ERMA | Environmental Risk Management Authority |
| ERMT | Environmental and Resource Management Team |
| ERMT | Environmental Research and Monitoring Team |
| ERN | Environmental Regularity Number |
| ERP | Environmental Resource Permit |