On January 12, 1942, President Franklin D. Roosevelt revived the National War Labor Board (NWLB) for World War II. In order to prevent wartime labor stoppages, the NWLB was set up to arbitrate labor disputes that arose during the war. The NWLB also managed wage controls over the airplane, automobile, shipping, mining, telegraph, and railway industries during the war.
The original NWLB was created by President Woodrow Wilson during World War I for largely the same purposes. Read
Cornell University's collection of NWLB files from both World Wars.