The AFL-CIO is an organization of over 50 major national and international labor unions. It formed in 1955 as a merger of two big union conglomerates. In summer 2005 a few unions left the AFL-CIO in protest, including SEIU and HERE, as part of the "Change to Win" coalition. aflcio.org

Organization of labor unions to help increase the rights of workers.

American Federation of Labor - Congress of Industrial Organizations - AFL-CIO home page

Name of the federation created by merger in 1955 of the American Federation of Labor and the Congress of Industrial Organizations. Check-off - A system by which union dues and other assessments are deducted from the employees' paychecks by the employer, either automatically or on specific authorization from the workers

The American Federation of Labor-Congress of Industrial Organizations (AFL-CIO) is the voluntary federation of America's unions, representing more than 13 million working women and men nationwide.

American Federation of Labor and Congress of Industrial Organizations; the nation’s largest labor organization

American Federation of Labor and Congress of Industrial Organizations, commonly AFL-CIO, is the largest federation of unions in the United States, made up of 53 national and international unions (including Canadian), together representing over 9 million workers. It was formed in 1955 when the AFL and the CIO merged after a long estrangement. From 1955 until 2005, the AFL-CIO's member unions represented virtually all unionized workers in the US.