| Abbreviation | Definition |
|---|---|
| BIAC | Bucharest International Arbitration Court |
| BIALL | British Irish Association of Law Librarians |
| BIB | Badge In a Box |
| BICE | Building Inspection Code Enforcement |
| BIEO | Bureau of Investigation Economic Offences |
| BIEO | Bureau of Investigation for Economic Offences |
| BIIA | Board of Industrial Insurance Appeals (Washington) |
| BIL | Bro In Law |
| BILA | British Italian Law Association |
| BILG | Business Immigration Law Group |
| BILI | Bulgarian Institute for Legal Initiatives |
| BILL | Business Information, Law, and Life |
| BILP | Bristol Institute of Legal Practice |
| BILT | Business of Innovation Law and Technology |
| BINP | Biochar Investigation Network of Portugal |
| BIP | Battering Intervention Program |
| BIP | Behavior Intervention Plan |
| BIPA | Biometric Information Privacy Act |
| BIPC | Business and Intellectual Property Centre |
| BIST | Behavior Intervention Support Team |