| Abbreviation | Definition |
|---|---|
| BCCLS | Bergen County Cooperative Library System |
| BCCLS | British Columbia Courthouse Library Society |
| BCEL | Byte Code Engineering Library |
| BCL | Base Class Libraries |
| BCL | Beaverton City Library |
| BCL | Berkeley Container Library |
| BCL | Broward County Library |
| BCL | Building Component Library |
| BCL | Bulkington Community Library |
| BCLA | British Columbia Library Association |
| BCLA | Broward County Library Association |
| BCLC | Baldwin County Library Cooperative |
| BCLE | Ballston Coakley Library Extension |
| BCLS | Bartow County Library System |
| BCLS | Bay County Library System |
| BCLS | Big Country Library System |
| BCLS | Brazoria County Library System |
| BCLS | Burlington County Library System |
| BCPL | Baltimore County Public Library |
| BCPL | Bartholomew County Public Library |