The U.S. Department of Energy (DOE ) has issued a final rule updating energy efficiency standards in federal buildings to comply with the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHR AE) Standard 90.1-2007 and the 2009 International Energy Conservation Code (IECC ). 76 Fed. Reg. 49,279 (8/10/11). The rule applies to office buildings and other federal buildings developed for industrial or public purposes, and government residential buildings, such as military housing and public housing projects that feature high- and low-rise residential buildings.

Under section 305 of the Energy Conservation and Production Act, DOE is required to revise federal building energy efficiency performance standards for new federal buildings that meet the energy efficiency levels in applicable voluntary consensus standards. The rule applies to new federal buildings “for which design for construction begins on or after one year from the date of the notice,” that is, publication in the Federal Register, and amends 10 C.F.R. Parts 433 and 435. The rule is effective October 11, 2011.