II 115th CONGRESS 2d Session S. 2825 IN THE SENATE OF THE UNITED STATES May 10, 2018 Mr. Flake (for himself and Mr. McCain ) introduced the following bill; which was read twice and referred to the Committee on Environment and Public Works A BILL To amend the Clean Air Act to modify provisions relating to international border areas, marginal areas, and rural transport areas, and for other purposes.