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Beaver-Lawrence Central Labor Council
Bergen County Central Trades and Labor Council
Big Sky Central Labor Council
Black Hawk Union
Blair-Bedford Central Labor Council, AFL-CIO
Bloomington-Normal Trades and Labor Assembly
Bluegrass Central Labor Council, AFL-CIO
Boise Central Trades and Labor Council, AFL-CIO
Boulder Area Labor Council, AFL-CIO
Brooke-Hancock Labor Council, AFL-CIO
Broome County Federation of Labor, AFL-CIO
Broward County AFL-CIO
Bucks County Federation of Trade and Industrial Council
Buffalo AFL-CIO Council
Burlington County Central Labor Union