II 115th CONGRESS 2d Session S. 3691 IN THE SENATE OF THE UNITED STATES November 29, 2018 Ms. Duckworth (for herself and Mr. Durbin ) introduced the following bill; which was read twice and referred to the Committee on Environment and Public Works A BILL To modernize the National Air Toxics Assessment, the Integrated Risk Information System, and the Agency for Toxic Substances and Disease Registry, and for other purposes.