H.R. 521 — Ending Presidential Overreach on Public Lands Act

This section revises the Antiquities Act (54 U.S.C. 320301)—which has authorized presidents since 1906 to proclaim national monuments on federal lands (confined to the smallest area needed for protection)—to prohibit the establishment or extension of any national monument except by express congressional authorization. (Thus, it eliminates all presidential authority to designate or expand national monuments unilaterally, including the prior exception requiring congressional approval only in Wyoming.)