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The International Brotherhood of Teamsters (IBT), also known as the Teamsters Union, is a labor union in the United States and Canada. Formed in 1903 by the merger of The Team Drivers International Union and The Teamsters National Union, the union now represents a diverse membership of blue-collar and professional workers in both the public and private sectors. The union has approximately 1.3 million members as of 2020. Formerly known as the International Brotherhood of Teamsters, Chauffeurs, Warehousemen and Helpers of America, the IBT is a member of the Change to Win Federation and Canadian Labour Congress.