To amend the Antiquities Act of 1906 to place additional requirements on the establishment of national monuments under that Act, and for other purposes.

Section 2 of the Act of June 8, 1906 (commonly known as the “Antiquities Act of 1906”; 16 U.S.C. 431) is amended by striking “, in his discretion, to declare by public proclamation” and inserting “ to declare, subject to approval by an Act of Congress,”.