; and (2) in paragraph (3) by striking December 31, 2023 and inserting March 8, 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) $1,287,431,694 for the period beginning on October 1, 2023, and ending on March 8, 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) $111,475,410 for the period beginning on October 1, 2023, and ending on March 8, 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 $89,191,486 for the period beginning on October 1, 2023, and ending on December 31, 2023, and inserting $155,115,628 for the period beginning on October 1, 2023, and ending on March 8, 2024, . (b) Airports not receiving sufficient service Section 41743(e)(2) of title 49, United States Code, is amended by striking $2,513,661 for the period beginning on October 1, 2023, and ending on December 31, 2023, and inserting $4,371,585 for the period beginning on October 1, 2023, and ending on March 8, 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 January 1, 2024 and inserting March 9, 2024 ; and (2) in subparagraph (A) by striking the semicolon at the end and inserting or the Airport and Airway Extension Act of 2023, Part II