; and (2) by adding at the end the following: (19) Major renovation The term major renovation means a modification of building energy systems sufficiently extensive that the whole building can meet energy standards for new buildings, based on criteria to be established by the Secretary through notice and comment rulemaking. . (b) Federal building efficiency standards Section 305(a)(3) of the Energy Conservation and Production Act ( 42 U.S.C. 6834(a)(3) ) (as amended by section 1114) is amended— (1) by striking (3)(A) Not later than and all that follows through subparagraph (B) and inserting the following: (3) Revised federal building energy efficiency performance standards (A) Revised federal building energy efficiency performance standards (i) In general Not later than 1 year after the date of enactment of the Energy and Natural Resources Act of 2017 , the Secretary shall establish, by rule, revised Federal building energy efficiency performance standards that require that— (I) new Federal buildings and alterations and additions to existing Federal buildings— (aa) meet or exceed the most recent revision of the International Energy Conservation Code (in the case of residential buildings) or ASHRAE Standard 90.1 (in the case of commercial buildings) as of the date of enactment of the Energy and Natural Resources Act of 2017 ; and (bb) meet or exceed the energy provisions of State and local building codes applicable to the building, if the codes are more stringent than the International Energy Conservation Code or ASHRAE Standard 90.1, as applicable; (II) unless demonstrated not to be life-cycle cost effective for new Federal buildings and Federal buildings with major renovations— (aa) the buildings be designed to achieve energy consumption levels that are at least 30 percent below the levels established in the version of the ASHRAE Standard or the International Energy Conservation Code, as appropriate, that is applied under subclause (I)(aa), including updates under subparagraph (B)