1. Definitions For the purposes of this Act: (1) FCRPS The term FCRPS means the Federal Columbia River Power System. (2) Secretaries The term Secretaries means— (A) the Secretary of the Interior, acting through the Bureau of Reclamation; (B) the Secretary of Energy, acting through the Bonneville Power Administration; and (C) Secretaries of the Army, acting through the Army Corps of Engineers. (3) Supplemental Opinion The term Supplemental Opinion means the document titled Endangered Species Act Section 7(a)(2) Supplemental Biological Opinion , NOAA Fisheries Log Number NWR–2013–9562, and dated January 17, 2014, which supplements, without replacing, the 2008 and 2010 FCRPS Biological Opinions and the Reasonable and Prudent Alternative contained therein. 2. Operation of FCRPS The Secretaries shall operate the FCRPS in a manner consistent with the reasonable and prudent alternative set forth in the Supplemental Opinion until the later of the following dates: (1) September 30, 2022. (2) The date upon which a subsequent final biological opinion for the FCRPS operations is— (A) issued after completion of the final environmental impact statement on a record of decision for a new operations plan for the FCRPS; and (B) in effect, with no pending further judicial review. 3. Amendments to Supplemental Opinion (a) In general Notwithstanding section 2, the Secretaries may amend portions of the Supplemental Opinion and operate the FCRPS in accordance with such amendments, before the date established under section 2 if all of the Secretaries determine, in the sole discretion of each Secretary, that— (1) the amendment is necessary for public safety or transmission and grid reliability