2016 (130 Stat. 641). (c) Section 186(d) of the Vision 100–Century of Aviation Reauthorization Act (117 Stat. 2518) shall be applied by substituting 2012 through 2018 and for the period beginning on October 1, 2018, and ending on October 7, 2018 for 2012 through 2018 . 4. Expenditure authority from the airport and airway trust fund (a) Sections 9502(d)(1) and 9502(e)(2) of the Internal Revenue Code of 1986 shall be applied by substituting October 8, 2018 for October 1, 2018 . (b) Section 9502(d)(1)(A) of such Code is amended by striking the semicolon at the end and inserting or the Airport and Airway Extension Act of 2018, Part II