noun
Law Concerning the Rational Use of Energy
Official full name of the Japanese energy conservation law; abbreviation of エネルギーの使用の合理化等に関する法律.
省エネ法は、工場や事業所のエネルギー使用を規制している。
The Law Concerning the Rational Use of Energy regulates energy use in factories and business establishments.
noun
energy saving law
General term for any law promoting energy conservation; often refers to the Japanese law but can be used generically.
各国で省エネ法が制定されている。
Energy saving laws have been enacted in various countries.