| Abbreviation | Definition |
|---|---|
| ECAB | Early Case Assessment Bureau |
| ECAB | Eden Citizens Advice Bureau |
| ECB | Estonian Convention Bureau |
| ECEB | Egyptian cultural and educational bureau |
| ECRB | Enhanced Criminal Records Bureau |
| ECRB | Essex County Recovery Bureau |
| ECSB | Early Childhood Services Bureau |
| EDBK | Engine Design Bureau of Kharkiv |
| EDLB | Economic Development and Labour Bureau |
| EFB | Export Promotion Bureau |
| EIB | Economic Intelligence Bureau |
| EICB | Export and Import Controls Bureau |
| EICB | Export and Import Controls Bureau's |
| EMB | Education and Manpower Bureau |
| EPB | Export Prevention Bureau |
| ERD | External Resources Division |
| ESIB | European Student Information Bureau |
| ETWB | Environment Transport and Works Bureau |
| FB | Farm Bureau |
| FBFCU | Farm Bureau Family Credit Union |