; and (B) the biological status of the affected stock is such that, based on the most recent review of the status of such stock by the Scientific Committee of the Commission, the aboriginal subsistence needs statement submitted by the United States to the Commission of that year is sustainable. (2) Limitation The catch limits established by the Secretary under paragraph (1) shall satisfy the Alaska Native subsistence needs described in a statement submitted by the United States to the Commission, and shall include carryover at the level accepted by the Scientific Committee of the Commission in its most recent review of the subsistence whaling quota. (3) Construction Nothing in paragraph (1) relieves the United States Commissioner of the Commissioner's obligation to continue seeking adoption by the Commission, pursuant to the paragraph 13 of the regulations of the Commission (or any successor to such paragraph that permits aboriginal subsistence whaling), of catch limits that provide for Alaska Native aboriginal subsistence needs. . (b) Waiver of environmental review The Whaling Convention Act of 1949 ( 16 U.S.C. 916 et seq.), as amended by subsection (a), is further amended by adding at the end the following: 17. Waiver of environmental review An action taken under this Act, with respect to a stock of a whale species, shall be deemed not to require any review under the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq.) if the Secretary determines such action is sustainable based on the most recent review of the status of such stock by the Scientific Committee of the Commission. . 3. Implementing regulations (a) In general Not later than 3 years after the date of enactment of this Act, the Secretary of Commerce shall issue any regulations necessary to implement section 6A of the Whaling Convention Act of 1949, as added by section 2(a). (b) Review and updates The Secretary of Commerce shall review and update the regulations required by subsection (a) as needed, and at least once every 5 years,