| Abbreviation | Definition |
|---|---|
| BNBI | Battelle National Biodefense Institute |
| BNF | Boise National Forest |
| BNHP | Boston National Historical Park |
| BNL | Brookhaven National Laboratory |
| BO | Budget Outlay |
| BOA | Blanket Ordering Agreement |
| BOE | Board Of Examiners |
| BOEC | Board Of Executive Clemency |
| BOLD | Bidding On Line Depository |
| BOOB | Benevolent Order Of the Bureaucrat |
| BOP | Balance Of Power |
| BOP | Beginning Of Period |
| BOP | Burden Of Proof |
| BOP | Federal Bureau of Prisons |
| BOQ | Base officers' quarters |
| BOR | Bill Of Rights |
| BOR | Board of Review |
| BOR | Bureau of Reclamation |
| BOS | Base operations support |
| BOT | Board Of Trade |