; and (2) in paragraph (3) by striking March 8, 2024 and inserting May 10, 2024 . 104. Air navigation facilities and equipment Section 48101(a) of title 49, United States Code, is amended by striking paragraph (7) and adding at the end the following: (7) $1,794,357,923 for the period beginning on October 1, 2023, and ending on May 10, 2024. . 105. Research, engineering, and development Section 48102(a) of title 49, United States Code, is amended by striking paragraph (16) and inserting the following: (16) $155,368,852 for the period beginning on October 1, 2023, and ending on May 10, 2024. . 106. Small community air service (a) Essential air service authorization Section 41742(a)(2) of title 49, United States Code, is amended by striking $155,115,628 for the period beginning on October 1, 2023, and ending on March 8, 2024, and inserting $216,192,407 for the period beginning on October 1, 2023, and ending on May 10, 2024, . (b) Airports not receiving sufficient service Section 41743(e)(2) of title 49, United States Code, is amended by striking $4,371,585 for the period beginning on October 1, 2023, and ending on March 8, 2024, and inserting $6,092,896 for the period beginning on October 1, 2023, and ending on May 10, 2024, . II AVIATION REVENUE PROVISIONS 201. Expenditure authority from airport and airway trust fund (a) In general Section 9502(d)(1) of the Internal Revenue Code of 1986 is amended— (1) in the matter preceding subparagraph (A) by striking March 9, 2024 and inserting May 11, 2024 ; and (2) in subparagraph (A) by striking the semicolon at the end and inserting or the Airport and Airway Extension Act of 2024