![]() ![]() ![]() This article describes 90.1 and IECC and focuses on specific lighting control requirements in the 2010 version of 90.1 and the 2012 version of IECC, which are being adopted.ĪSHRAE/IES 90.1, Energy-Efficient Design of New Buildings Except Low-Rise Residential Buildings, produced jointly by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) and the Illuminating Engineering Society (IES), was first published in 1975. Both feature increasingly stringent requirements for lighting controls. A large majority of commercial building energy codes in the United States are based on either the ASHRAE/IES 90.1 energy standard or the International Energy Conservation Code (IECC) model code.
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