| Abbreviation | Definition |
|---|---|
| ER | Emergency Rule |
| ERAC | Public Employee Retirement Administration Commission |
| ERB | Educational Retirement Board |
| ERC | Education Relations Commission (Ontario) |
| ERCA | Enforcement of Restrictions on Community Activities |
| ERDS | Economic Rural Development Society |
| ERGO | Efficient Regional Government Opportunities |
| ERRA | Earthquake Reconstruction and Rehabilitation Authority |
| ERTF | Economic Reform Task Force |
| ERTF | Economic Revitalization Task Force |
| ERTF | Electronic Recordation Task Force |
| ES | Eureka Springs |
| ES-202 | Covered Employment and Wages |
| ESA | Employment Standards Act |
| ESAF | Electronic State Access to Facts |
| ESB | Electricity Supply Board |
| ESB | Empire State Building |
| ESC | Employment Security Commission |
| ESCR | Electronic Social Care Record |
| ESP | Economic and Social Partnership |