| Abbreviation | Definition |
|---|---|
| BPAS | British Pregnancy Advisory Service |
| BRAB | Bronx Realty Advisory Board |
| BRAB | Building Regulations Advisory Body |
| BRAC | Bridge Replacement Advisory Committee |
| BRAC | Building Regulations Advisory Committee |
| BSAC | British Screen Advisory Council |
| BSAG | Bond Stakeholder Advisory Group |
| BSRAC | Baltic Sea Regional Advisory Council (also seen as BS RAC) |
| BSTAP | Building Safety Technical Advisory Panel |
| BTAB | Boulder Teen Advisory Board |
| BTAC | Bicycle And Trails Advisory Committee |
| BTAC | Bicycle Trails Advisory Committee |
| BTAC | Boulder Transition Advisory Committee |
| BTAC | British Transport Advisory Committee |
| BTAC | British Transport Advisory Consortium |
| BTAC | Businesses of Thornton Advisory Commission |
| BTAG | Bicycle Trails Advisory Group |
| BVAC | Balboa Village Advisory Committee |
| BVAC | Board Volunteer Advisory Committee |
| BWAC | Boundary Waters Advisory Committee |