II 118th CONGRESS 1st Session S. 2378 IN THE SENATE OF THE UNITED STATES July 19, 2023 Mr. Markey (for himself, Ms. Warren , and Mr. Whitehouse ) introduced the following bill; which was read twice and referred to the Committee on Finance A BILL To amend the Internal Revenue Code of 1986 to increase excise taxes on fuel used by private jets, and for other purposes.