War Transportation Committee
When the United States declared war on Japan in December 1941, over ninety percent of the nation's crude rubber supply was controlled by the Japanese and instantly lost. Almost immediately, the U.S. government took steps to ensure that civilian consumption would not interfere with military exigencies: in January 1941, all new car sales were frozen and by the end of July 1942, gas rationing had been implemented. New York State, where seventy-five percent of the work force depended on personal automobiles to commute between home and work, was particularly hard hit.