Act on Rationalization of Energy Use and Shift to Non-fossil Energy（Act No. 49 of 1979）.

This Act sets out measures required for the rational use of energy in order to assure the effective utilization of fuel resources.
The Minister of Economy, Trade and Industry must formulate and make public a basic policy for the rationalization of energy use and the shift to non-fossil energy, from the perspective of comprehensively promoting the rationalization of energy use and the shift to non-fossil energy as well as the optimization of electricity demand in factories, offices or other workplaces, transportation, buildings, machinery and equipment, etc. Persons who use energy must, while giving due consideration to the provisions of the basic policy, endeavor to achieve the rationalization of energy use and the shift to non-fossil energy, etc., and endeavor to take measures conducive to the optimization of electricity demand.