| Abbreviation | Definition |
|---|---|
| EMTA | European Metropolitan Transport Authorities |
| EMU | Electric Multiple-Unit Car |
| EMY | Emeryville (San Francisco- Oakland) Amtrak Station |
| ENC | Electronic Navigation Chart |
| ENL | Engine Noise Level |
| ENOD | Employee Not on Duty |
| ENTERPRISE | Evaluating New Technologies for Roads Program Initiatives in Safety and Efficiency |
| ENV | Emissions Neutral Vehicle |
| EOD | Employee On Duty |
| EOF | Emergency Operations Facility |
| EOR | End Of Road |
| EOS | Electronically Operated System |
| EOS | End Of Street |
| EOS | Engine Oil Supplement |
| EOS | Extension Of Stay |
| EOT | Electrification Of Transportation |
| EOT | Executive Office of Transportation |
| EOTC | Executive Office Of Transportation And Construction |
| EOV | Emergency Operations Vehicle |
| EP | End Point |