II 118th CONGRESS 1st Session S. 3479 IN THE SENATE OF THE UNITED STATES December 12, 2023 Mr. Heinrich (for himself, Mr. Luján , Mr. Padilla , Ms. Butler , Mr. Kelly , and Ms. Sinema ) introduced the following bill; which was read twice and referred to the Committee on Environment and Public Works A BILL To amend title 40, United States Code, to modify certain requirements for regional commissions, to reauthorize the Southwest Border Regional Commission, and for other purposes.