Amendment to Standby Gasoline Rationing Plan (Contingency Plan No. 6). Message from the President of the United States transmitting an amendment to the Standby Gasoline Rationing Plan (Standby Gasoline Rationing Plan No. 1) submitted on March 1, 1979, pursuant to sections 201 (d) (1) and 552 of the Energy Policy and Consideration Act. May 8, 1979. -- Message and accompanying papers referred to the Committee on Interstate and Foreign Commerce and ordered to be printed