| Abbreviation | Definition |
|---|---|
| BCS | Buncombe County Schools |
| BCSA | Baltimore County State's Attorney |
| BCSD | Beaufort County School District |
| BCSD | Bexar County Sheriff Department |
| BCSD | Blaine County School District |
| BCSF | Bergen County Silent Fliers |
| BCSL | Bergen County Scholastic League |
| BCSL | Burlington County Scholastic League |
| BCSO | Baker County Sheriff's Office |
| BCSO | Baltimore County Sheriff's Office |
| BCSO | Beaufort County Sheriff's Office |
| BCSO | Bernalillo County Sheriff's Office |
| BCSO | Bexar County Sheriff's Office |
| BCSO | Blount County Sheriff's Office |
| BCSO | Boone County Sheriff's Office |
| BCSO | Bradley County Sheriff's Office |
| BCSO | Brazoria County Sheriff's Office |
| BCSO | Brevard County Sheriff's Office |
| BCSO | Bristol County Sheriff's Office |
| BCSO | Broome County Sheriff's Office |