1. Short title This Act may be cited as the Airport and Airway Extension Act of 2024, Part II . 2. Table of contents The table of contents for this Act is as follows: Sec. 1. Short title. Sec. 2. Table of contents. Title I—Federal Aviation Programs Sec. 101. Extension of airport improvement program; discretionary fund. Sec. 102. Extension of expiring authorities; miscellaneous authorizations. Title II—Airport 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. Extension of airport improvement program; discretionary fund (a) Authorization of appropriations Section 48103(a)(7) of title 49, United States Code, shall be applied by substituting $2,105,191,256 for the period beginning October 1, 2023, and ending on May 17, 2024. for $2,041,120,218 for the period beginning October 1, 2023, and ending on May 10, 2024. . (b) Obligation authority Subject to limitations specified in advance in appropriations Acts, sums made available pursuant to subsection (a) may be obligated at any time through September 30, 2024, and shall remain available until expended. (c) Project grant authority Section 47104(c) of title 49, United States Code, shall be applied by substituting May 17, 2024 for May 10, 2024 . (d) Special rule for apportionments Section 47114(c)(1)(J) of title 49, United States Code, shall be applied by substituting May 17, 2024 for May 10, 2024 . (e) Supplemental discretionary funds Section 47115(j)(4)(A) of title 49, United States Code, shall be applied by substituting $334,563,279 for the period beginning on October 1, 2023, and ending on May 17, 2024. for $340,321,762 for the period beginning on October 1, 2023, and ending on May 10, 2024. . 102. Extension of expiring authorities