; and (2) by striking subsections (c) and (d) and inserting the following: (c) Periodic review The Secretary shall— (1) once every 5 years, review the Federal building energy standards established under this section; and (2) on completion of a review under paragraph (1), if the Secretary determines that significant energy savings would result, upgrade the standards to include all new energy efficiency and renewable energy measures that are technologically feasible and economically justified. . (c) Federal compliance Section 306 of the Energy Conservation and Production Act ( 42 U.S.C. 6835 ) is amended— (1) in subsection (a)— (A) in paragraph (1)— (i) by striking (1) The head and inserting the following: (1) In general The head ; and (ii) by striking assure that new Federal buildings and inserting ensure that new Federal buildings and Federal buildings with major renovations ; and (B) in paragraph (2)— (i) by striking the second sentence and inserting the following: (B) Procedures The Architect of the Capitol shall adopt procedures necessary to ensure that the buildings referred to in subparagraph (A) meet or exceed the standards described in that subparagraph. ; and (ii) in the first sentence— (I) by inserting and Federal buildings with major renovations after new buildings ; and (II) by striking (2) The Federal and inserting the following: (2) Applicability (A) In general The Federal ; and (2) in subsection (b)— (A) by striking the subsection heading and inserting Expenditures ; and (B) by inserting or a Federal building with major renovations after new Federal building . 424. Enhanced energy efficiency underwriting (a) Definitions In this section: (1) Covered agency The term covered agency — (A) means— (i) an executive agency, as that term is defined in section 102 of title 31, United States Code; and (ii) any other agency of the Federal Government