; and (ii) by adding at the end the following: (2) Time period for suspension of operations Any suspension of operations under paragraph (1)— (A) shall be for a period of not more than 90 days; and (B) may be renewed for one or more additional periods of not more than 90 days each. . (2) Existing withdrawals Any withdrawal from disposition of any of the unleased land of the outer Continental Shelf under section 12(a) of the Outer Continental Shelf Lands Act ( 43 U.S.C. 1341(a) ) (as in effect on the day before the date of enactment of this Act) that occurred before the date of the enactment of this Act (other than a withdrawal from disposition any of the unleased land of the outer Continental Shelf located in a national marine sanctuary or a national monument) shall have no force or effect. (b) Termination of authority To establish marine national monuments (1) Termination of authority Section 320301 of title 54, United States Code, is amended by adding at the end the following: (e) Limitation of marine areas Notwithstanding subsections (a) and (b), the President may not declare or reserve any ocean waters (as defined in section 3 of the Marine Protection, Research, and Sanctuaries Act of 1972 ( 33 U.S.C. 1402 )) or land beneath ocean waters as a national monument. . (2) Existing monuments not affected Nothing in the amendment made by paragraph (1) affects any national monument declared before the date of the enactment of this Act.