; and (11) identify and, where appropriate, implement other voluntary approaches, such as labeling waterless devices that perform the same function as a water consuming product or encouraging reuse, reclamation, and recycling technologies, in commercial, institutional, residential, municipal, and industrial sectors to improve water efficiency or lower water use while meeting the performance standards established under paragraph (3). 3. Federal procurement of water efficient products (a) Definitions In this section: (1) Agency The term agency has the meaning given that term in section 7902(a) of title 5, United States Code. (2) Watersense product or service The term WaterSense product or service means a product or service that is rated for water efficiency under the WaterSense program. (3) Watersense program The term WaterSense program means the program established by section 2 of this Act. (4) FEMP designated product The term FEMP designated product means a product that is designated under the Federal Energy Management Program of the Department of Energy as being among the highest 25 percent of equivalent products for efficiency. (5) Product and service The terms product and service do not include any water consuming product or service designed or procured for combat or combat-related missions. The terms also exclude products or services already covered by the Federal procurement regulations established under section 553 of the National Energy Conservation Policy Act ( 42 U.S.C. 8259b ). (b) Procurement of water efficient products (1) Requirement To meet the requirements of an agency for a water consuming product or service, the head of the agency shall, except as provided in paragraph (2), procure— (A) a WaterSense product or service