; and (B) through reductions of 2 percent each fiscal year. (3) Energy and water intensive building exclusion (A) In general An agency may exclude from the requirements of paragraphs (1) and (2) any building (including the associated energy consumption and gross square footage of the building) in which energy and water intensive activities are carried out. (B) Reports Each agency shall identify and include in each report under section 548(a) each building designated by the agency for exclusion under subparagraph (A) during the period covered by the report. (4) Recommendations Not later than December 31, 2026, the Secretary shall— (A) review the results of the implementation of the energy and water performance requirements established under paragraph (1); (B) submit to Congress recommendations concerning energy performance requirements for fiscal years 2028 through 2037; and (C) submit to Congress recommendations concerning water performance requirements for fiscal years 2031 through 2040. ; (3) in subsection (b)— (A) in the subsection heading, by inserting and water after Energy ; (B) by redesignating paragraphs (2) through (4) as paragraphs (3) through (5), respectively; and (C) by striking paragraph (1) and inserting the following: (1) In general Each agency shall— (A) not later than October 1, 2019, to the maximum extent practicable, begin installing in Federal buildings owned by the United States all energy and water conservation measures determined by the Secretary to be life cycle cost-effective (as defined in subsection (f)(1))