II 115th CONGRESS 2d Session S. 2683 IN THE SENATE OF THE UNITED STATES April 17, 2018 Mr. Crapo (for himself and Mr. Brown ) 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 impose a mileage-based user fee for mobile mounted concrete boom pumps in lieu of the tax on taxable fuels, and for other purposes.