| Abbreviation | Definition |
|---|---|
| EMP | Environmental Management Plan |
| EMR | Experience Modification Rate |
| EMS | E-business Made Simple |
| EMS | Effective Management System |
| EMS | Employee Management Services |
| EMS | Energy Management System |
| EMS | Engineering Management System |
| EMS | European Monetary System |
| EMS | Express Mail Service |
| EMT | Efficiency And Management Tracking |
| EMT | Executive Management Team |
| EMU | External Marketable Unit |
| EMUG | Engineering Master User Group |
| ENCL | ENCLosure |
| ENCS | Enclosures |
| ENR | Engineering News‐Record’s |
| ENR | Engineering NewsRecords |
| ENT | Enterprise |
| env. | envelope |
| EO | Economical Office |