| Abbreviation | Definition |
|---|---|
| EOPD | E O P D East Orange Police Department |
| EOPD | East Orange Police Department |
| EOR | End Of Report |
| EPD | Eugene Police Department |
| EPD | Evansville Police Department |
| EPIRB | Emergency Position-Indicating Radio Beacon |
| EPOA | Eureka Police Officers Association |
| EPOA | Everett Police Officers Association |
| EPPD | Eden Prairie Police Department |
| EPPD | El Paso Police Department |
| EPRO | electronic Police Reports Online |
| EPTU | European Police Training Union |
| EPU | European Police Union |
| ERAP | Ecole régionale d'aspirants de police |
| ERASE | Eliminate Racing Activity on Streets Everywhere |
| ERB | Emergency Response Belt |
| ERPD | East Rutherford Police Department |
| ERT | Evidence Response Team |
| ERTF | Emergency Response Task Force |
| ERV | Emergency Response Vehicle |