1. Short title; table of contents (a) Short title This Act may be cited as the Airport and Airway Extension Act of 2023 . (b) Table of contents The table of contents for this Act is as follows: Sec. 1. Short title; table of contents. Title I—Federal Aviation Programs Sec. 101. Airport improvement program. Sec. 102. Extension of expiring authorities; miscellaneous authorizations. Sec. 103. Federal Aviation Administration operations. Sec. 104. Air navigation facilities and equipment. Sec. 105. Research, engineering, and development. Sec. 106. Small community air service. Title II—Aviation Revenue Provisions Sec. 201. Expenditure authority from Airport and Airway Trust Fund. Sec. 202. Extension of taxes funding Airport and Airway Trust Fund. I Federal Aviation Programs 101. Airport improvement program (a) Authorization of appropriations Section 48103(a) of title 49, United States Code, is amended— (1) in paragraph (5) by striking the and at the end; (2) in paragraph (6) by striking the period at the end and inserting ; and ; and (3) by adding at the end the following: (7) $842,076,502 for the period beginning on October 1, 2023, and ending on December 31, 2023. . (b) Obligation authority Subject to limitations specified in advance in appropriation Acts, sums made available pursuant to the amendment made by subsection (a) may be obligated at any time through September 30, 2024, and shall remain available until expended. (c) Program implementation For purposes of calculating funding apportionments and meeting other requirements under sections 47114, 47115, 47116, and 47117 of title 49, United States Code, for the period beginning on October 1, 2023, and ending on December 31, 2023, the Administrator of the Federal Aviation Administration shall— (1) first calculate such funding apportionments on an annualized basis as if the total amount available under section 48103 of such title for fiscal year 2024 was $3,350,000,000