| Abbreviation | Definition |
|---|---|
| EP | Extreme Pressure |
| EPACT | Energy Policy Act of 1992 |
| EPC | Extended Propulsion Coverage |
| EPE | Estimated Position Error |
| EPFL | Estes Park Freight Line |
| EPIC | Electric Powered Interurban Commuter |
| EPRIB | Electronic Position Indicating Radio Beacon |
| EPS | Engineered Performance Standards |
| EPV | Electric Picnic Vehicle |
| EPV | Exempted Persons and Vehicles |
| ERAA | European Regions Airline Association |
| ERAM | En Route Automation Modernization |
| ERASE | Eliminate Racing Activity on Streets Everywhere |
| ERBL | Electronic Range and Bearing Line |
| E-REV | Extended-Range Electric Vehicle |
| ERF | European Road Failure |
| ERG | Emergency Response Guide |
| ERG | Emergency Response Guidebook |
| ERGS | Electronic Route Guidance System |
| ERI | Erie Amtrak Station |