1. Short title This Act may be cited as the Improved National Monument Designation Process Act . 2. Designation of national monuments (a) In general Section 320301 of title 54, United States Code, is amended— (1) in subsection (a), by striking The President may, in the President's discretion and inserting the following: After obtaining congressional approval of the proposed national monument, certifying compliance with the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq. ) with respect to the proposed national monument, and receiving from the Governor of each State in which the proposed national monument is to be located notice that the State legislature has enacted legislation approving the designation of the proposed national monument, and subject to subsection (e), the President may ; and (2) by adding at the end the following: (e) Requirements for declaration of marine national monuments (1) Definition of exclusive economic zone In this subsection, the term exclusive economic zone means the zone established by Proclamation Number 5030, dated March 10, 1983 ( 16 U.S.C. 1453 note). (2) Requirements The President may not declare any area of the exclusive economic zone to be a national monument unless— (A) the declaration is specifically authorized by an Act of Congress; (B) the President has certified compliance with the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq. ) with respect to the proposed national monument; (C) the President has submitted to the Governor of each State and each territory, any part of which is located within 100 nautical miles of the proposed national monument, a proposal to make the declaration; (D) the Governor of each State and territory described in subparagraph (C) submits to the President notice that the legislature of the State or territory has approved the proposal submitted under that paragraph