1. Short title The Act may be cited as the Northwest Energy Security Act . 2. Definitions For the purposes of this Act: (1) FCRPS The term FCRPS means those portions of the Federal Columbia River Power System that are the subject of the Supplemental Opinion. (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) the Secretary of the Army, acting through the Army Corps of Engineers. (3) Supplemental opinion The term Supplemental Opinion means the document titled Columbia River System Operations Environmental Impact Statement Record of Decision , and dated September 2020. 3. 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. 4. Amendments to supplemental opinion (a) In general Notwithstanding section 3, the Secretaries may amend portions of the Supplemental Opinion and operate the FCRPS in accordance with such amendments 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; or (2) the actions, operations, or other requirements that the amendment would remove are no longer warranted. (b) Restriction on amendments The process described in subsection (a) shall be the only method by which the Secretaries may operate the FCRPS in any way that is not consistent with the reasonable and prudent alternative set forth in the Supplemental Opinion. 5. Limitation on restricting FCRPS electrical generation