The International Union of Bricklayers and Allied Craftworkers (BAC) is a labor union in the United States and Canada which represents bricklayers, restoration specialists, pointers/cleaners/caulkers, stonemasons, marble masons, cement masons, plasterers, tile setters, terrazzo mechanics, and tile, marble and terrazzo finishers. The union is an affiliate of the AFL-CIO and its Building and Construction Trades Department. It is also affiliated with the Canadian Labour Congress in Canada.
