; or (B) the standards issued by the Secretary of Energy under section 413 of the Energy Independence and Security Act of 2007 ( 42 U.S.C. 17071 ) when such standards are issued. (c) Revisions (1) In general If the requirements of the IECC, or, in the case of multifamily high rises, ANSI/ASHRAE/IES Standard 90.1, are revised, all new construction and rehabilitation of housing subject to subsection (b)(1) shall meet the requirements of the revised code or standard beginning 1 year after— (A) the Secretary of Energy makes a determination under section 304 of the Energy Conservation and Production Act ( 42 U.S.C. 6833 ) that the revised code or standard would improve energy efficiency