The War Production Board (WPB) was an agency of the United States government, which supervised production for war purposes during World War II. It was established on January 16, 1942, by Executive Order 9024 of President Franklin D. Roosevelt. The WPB replaced the Supply Priorities and Allocation Board and the Office of Production Management. The WPB directed the conversion of industries from peacetime work to war needs, allocated scarce materials, established priorities in the distribution of materials and services, and prohibited nonessential production. It rationed such things as gasoline, heating oil, metals, rubber, paper and plastics. It was dissolved shortly after the defeat of Japan in 1945, and was replaced by the Civilian Production Administration in late 1945.