The Atomic Trades and Labor Council, which is affiliated with the Metal Trades Department, AFL-CIO, is compiled of sixteen International Unions and seventeen local unions. The ATLC currently represents approximately 2100 members at Oak Ridge National Laboratory and the Y-12 National Security Complex. Contractors presently working within the labor agreements include:

The following is brief synopsis and of the history and timeline of the ATLC:

The ATLC was certified by the National Labor Relations Board as representative for the bargaining unit at the Oak Ridge National Laboratory X-10 Plant on September 25, 1946. Case number 10-R-1965.

The first contract at ORNL was negotiated with Monsanto Chemical Company, Clinton Laboratories on December 18, 1946.

The Metal Trades Department, AFL charted the Atomic Trades and Labor Council on January 7, 1948.

The ATLC was certified by the National Labor Relations Board as representative for the bargaining unit at the Y-12 Plant on February 26, 1951. Case number 10-RC-1044.

The first contract at Y-12 was negotiated with Carbide and Carbon Chemicals Company on December 3, 1951.

The American Federation of Labor (AFL) and Congress of Industrial Organization (CIO) merged in 1955 to form the AFL-CIO.

The Biology Division of the ORNL X-10 Plant was unionized by Service Employees International Union Local 166, AFL-CIO affiliated with the ATLC on April 1, 1968. Case number 10-RC-7147. On June 21, 1993, the Biology Division unit was merged into and became a part of the ORNL X-10 Plant bargaining unit.

The Atomic Trades and Labor Council (ATLC) is composed of sixteen International Unions and seventeen local unions that represent the bargaining unit employees at the Oak Ridge National Laboratory (ORNL) X-10 Plant and the Y-12 Plant in Oak Ridge, TN.

The ATLC currently represents approximately 1400 bargaining unit employees at the Y-12 Plant and 700 bargaining unit employees at the ORNL Plant.

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