1. Short title This Act may be cited as the Clean Water Infrastructure Resilience and Sustainability Act . 2. Clean water infrastructure resiliency and sustainability program Title II of the Federal Water Pollution Control Act ( 33 U.S.C. 1281 et seq.) is amended by adding at the end the following: 222. Clean water infrastructure resiliency and sustainability program (a) Definitions In this section: (1) Eligible entity The term eligible entity means— (A) a municipality; or (B) an intermunicipal, interstate, or State agency. (2) Natural hazard The term natural hazard means a hazard caused by natural forces, including extreme weather events, sea-level rise, and extreme drought conditions. (3) Program The term program means the clean water infrastructure resilience and sustainability program established under subsection (b). (b) Establishment The Administrator shall establish a clean water infrastructure resilience and sustainability program under which the Administrator shall award grants to eligible entities for the purpose of increasing the resilience of publicly owned treatment works to a natural hazard. (c) Use of funds An eligible entity that receives a grant under the program shall use the grant funds for planning, designing, or constructing projects (on a system-wide or area-wide basis) that increase the resilience of a publicly owned treatment works to a natural hazard through— (1) the conservation of water; (2) the enhancement of water use efficiency; (3) the enhancement of wastewater and stormwater management by increasing watershed preservation and protection, including through the use of— (A) natural and engineered green infrastructure; and (B) reclamation and reuse of wastewater and stormwater, such as aquifer recharge zones; (4) the modification or relocation of an existing publicly owned treatment works that is at risk of being significantly impaired or damaged by a natural hazard