; and (2) by adding at the end the following new subsection: (b) Beneficial use of water Notwithstanding any other Federal, State, or local law, the use of water from any source in quantities sufficient to accomplish the purposes of this subtitle to carry out Department functions under this subtitle is declared to be a use that is beneficial to interstate commerce and that does not threaten to prove detrimental to the public interest. A State shall not enact or apply a law that discriminates against this use. The Secretary, through purchase or otherwise, may obtain water rights necessary to carry out Department functions under this subtitle. . (b) Effective date This section shall take effect on the date on which the Nuclear Regulatory Commission issues a final decision approving the issuance of a construction authorization for a repository under section 114(d)(1) of the Nuclear Waste Policy Act of 1982 ( 42 U.S.C. 10134(d) ) (as so designated by this Act). 203. Application procedures and infrastructure activities (a) Application procedures and infrastructure activities Section 114(d) of the Nuclear Waste Policy Act of 1982 ( 42 U.S.C. 10134(d) ) is amended— (1) by striking The Commission shall consider and inserting the following: (1) Applications for construction authorization The Commission shall consider ; (2) by striking the expiration of 3 years after the date of the submission of such application and inserting 18 months after the date of enactment of the Nuclear Waste Policy Amendments Act of 2017 ; (3) by striking The Commission decision approving the first such application and all that follows through monitored retrievable storage facility until such time as a second repository is in operation.