Section 1. Short title
This Act may be cited as the Gateway Arch National Park Boundary Revision Act of 2026.
Section 2. Gateway Arch National Park boundary revision
Section 4(a) of the Act of May 17, 1954 (68 Stat. 99, chapter 204; 16 U.S.C. 450jj–3(a)), is amended, in the first sentence—
(1) by striking the Jefferson National Expansion Memorial and inserting Gateway Arch National Park;
(2) by striking one hundred acres and inserting 102.18 acres; and
(3) by striking map entitled and all that follows through January 1992 and inserting map entitled Gateway Arch National Park Proposed Boundary Revision, numbered 366/189,627, and dated August 2023.