In this section, references to the aggregate amounts for fiscal years ending before October 1, 1987–1992, are omitted as obsolete. The words “of which $475,000,000 shall be credited to the supplementary discretionary fund established by section 2206(a)(3)(B)” are omitted as executed. In restating section 505(a) (2d sentence) of the Airport and Airway Improvement Act of 1982 (Public Law 97–248, 96 Stat. 676), the cross-reference to the discretionary fund was retained but is incorrect because of the restatement of section 507 of the Airport and Airway Improvement Act of 1982 (Public Law 97–248, 96 Stat. 679) by section 426(a) of the Highway Improvement Act of 1982 (Public Law 97–424, 96 Stat. 2167). See section 47115 of the revised title.

Section 9502 of the Internal Revenue Code of 1986, referred to in subsec. (a), is classified to section 9502 of Title 26, Internal Revenue Code.

2024—Subsec. (a). Pub. L. 118–63 added pars. (7) to (11) and struck out former par. (7) which read as follows: “$2,041,120,218 for the period beginning October 1, 2023, and ending on May 10, 2024.”

Subsec. (a)(7). Pub. L. 118–41 added par. (7) and struck out former par. (7) which read as follows: “$1,464,480,874 for the period beginning October 1, 2023, and ending on March 8, 2024.”

2023—Subsec. (a)(7). Pub. L. 118–34 added par. (7) and struck out former par. (7) which read as follows: “$842,076,502 for the period beginning on October 1, 2023, and ending on December 31, 2023.”

Pub. L. 118–15 added par. (7).

2018—Subsec. (a). Pub. L. 115–254 substituted “section 47504(c)—” and pars. (1) to (6) for “section 47504(c) $3,350,000,000 for each of fiscal years 2012 through 2018.”

Pub. L. 115–141 substituted “2012 through 2018.” for “2012 through 2017 and $1,670,410,959 for the period beginning on October 1, 2017, and ending on March 31, 2018.”

2017—Subsec. (a). Pub. L. 115–63 inserted before period at end “and $1,670,410,959 for the period beginning on October 1, 2017, and ending on March 31, 2018”.

2016—Subsec. (a). Pub. L. 114–190 substituted “fiscal years 2012 through 2017.” for “fiscal years 2012 through 2015 and $2,652,083,333 for the period beginning on October 1, 2015, and ending on July 15, 2016..”

Pub. L. 114–141 substituted “$2,652,083,333 for the period beginning on October 1, 2015, and ending on July 15, 2016.” for “$1,675,000,000 for the period beginning on October 1, 2015, and ending on March 31, 2016”.

2015—Subsec. (a). Pub. L. 114–55 inserted “and $1,675,000,000 for the period beginning on October 1, 2015, and ending on March 31, 2016” before period at end.

2012—Pub. L. 112–95 amended section generally. Prior to amendment, section listed amounts available out of the Airport and Airway Trust Fund for fiscal years 2004 through 2011 and for the period beginning on Oct. 1, 2011, and ending on Feb. 17, 2012.

Par. (9). Pub. L. 112–91 amended par. (9) generally. Prior to amendment, par. (9) read as follows: “$1,181,270,492 for the period beginning on October 1, 2011, and ending on January 31, 2012.”

2011—Par. (8). Pub. L. 112–30 added par. (8) and struck out former par. (8) which read as follows: “$3,380,178,082 for the period beginning on October 1, 2010, and ending on September 16, 2011.”

Pub. L. 112–27 added par. (8) and struck out former par. (8) which read as follows: “$2,840,890,411 for the period beginning on October 1, 2010, and ending on July 22, 2011.”

Pub. L. 112–21 added par. (8) and struck out former par. (8) which read as follows: “$2,636,250,000 for the 9-month period beginning on October 1, 2010.”

Pub. L. 112–16 added par. (8) and struck out former par. (8) which read as follows: “$2,466,666,667 for the 8-month period beginning on October 1, 2010.”

Par. (8). Pub. L. 112–7 added par. (8) and struck out two former pars. (8) which read as follows:

“(8) $925,000,000 for the 3-month period beginning on October 1, 2010.

“(8) $1,850,000,000 for the 6-month period beginning on October 1, 2010.”

Par. (9). Pub. L. 112–30, § 204(a)(1)(B), added par. (9).

2010—Par. (6). Pub. L. 111–329, § 4(a)(1)(A), which directed striking out “and” at the end, could not be executed because the word “and” did not appear subsequent to amendment by Pub. L. 111–249.

Pub. L. 111–249, § 4(a)(1)(A), struck out “and” at the end.

Par. (7). Pub. L. 111–329, § 4(a)(1)(B), which directed substitution of “; and” for the period at the end, could not be executed because no period appeared subsequent to amendment by Pub. L. 111–249.

Pub. L. 111–249, § 4(a)(1)(B), substituted “; and” for the period at the end.

Pub. L. 111–197 amended par. (7) generally. Prior to amendment, par. (7) read as follows: “$3,024,657,534 for the period beginning on October 1, 2009, and ending on July 3, 2010.”

Pub. L. 111–161 amended par. (7) generally. Prior to amendment, par. (7) read as follows: “$2,333,333,333 for the 7-month period beginning on October 1, 2009.”

Pub. L. 111–153 amended par. (7) generally. Prior to amendment, par. (7) read as follows: “$2,000,000,000 for the 6-month period beginning on October 1, 2009.”

Par. (8). Pub. L. 111–329, § 4(a)(1)(C), added par. (8) relating to the 6-month period beginning on October 1, 2010.

Pub. L. 111–249, § 4(a)(1)(C), added par. (8) relating to the 3-month period beginning on October 1, 2010.

2009—Par. (6). Pub. L. 111–12 substituted “$3,900,000,000 for fiscal year 2009” for “$1,950,000,000 for the 6-month period beginning on October 1, 2008”.

Par. (7). Pub. L. 111–116 amended par. (7) generally. Prior to amendment, par. (7) read as follows: “$1,000,000,000 for the 3-month period beginning on October 1, 2009.”

Par. (7). Pub. L. 111–69 added par. (7).

2008—Par. (5). Pub. L. 110–253 amended par. (5) generally. Prior to amendment, par. (5) read as follows: “$2,756,250,000 for the 9-month period beginning October 1, 2007.”

Pub. L. 110–190 added par. (5).

Par. (6). Pub. L. 110–330 added par. (6).

2003—Pub. L. 108–176, § 101(a)(1), substituted “September 30, 2003” for “September 30, 1998” in introductory provisions.

Pars. (1) to (5). Pub. L. 108–176, § 101(a)(2), added pars. (1) to (4) and struck out former pars. (1) to (5) which read as follows:

“(1) $2,410,000,000 for fiscal year 1999;

“(2) $2,475,000,000 for fiscal year 2000;

“(3) $3,200,000,000 for fiscal year 2001;

“(4) $3,300,000,000 for fiscal year 2002; and

“(5) $3,400,000,000 for fiscal year 2003.”

2000—Pub. L. 106–181 substituted “shall be—” along with pars. (1) to (5) and concluding provisions for “shall be $2,410,000,000 for the fiscal year ending September 30, 1999.”

1999—Pub. L. 106–59 substituted “$2,410,000,000 for the fiscal year ending September 30, 1999.” for “$2,050,000,000 for the period beginning October 1, 1998 and ending August 6, 1999.”

Pub. L. 106–31 substituted “$2,050,000,000 for the period beginning October 1, 1998 and ending August 6, 1999.” for “$1,607,000,000 for the 8-month period beginning October 1, 1998.”.

Pub. L. 106–6 substituted “$1,607,000,000 for the 8-month period beginning October 1, 1998.” for “$1,205,000,000 for the six-month period beginning October 1, 1998”.

1998—Pub. L. 105–277 substituted “September 30, 1998” for “September 30, 1996” and “$1,205,000,000 for the six-month period beginning October 1, 1998” for “$2,280,000,000 for fiscal years ending before October 1, 1997, and $4,627,000,000 for fiscal years ending before October 1, 1998.”

1996—Pub. L. 104–264 substituted “September 30, 1996” for “September 30, 1981” and “$2,280,000,000 for fiscal years ending before October 1, 1997, and $4,627,000,000 for fiscal years ending before October 1, 1998.” for “$17,583,500,000 for fiscal years ending before October 1, 1994, $19,744,500,000 for fiscal years ending before October 1, 1995, and $21,958,500,000 for fiscal years ending before October 1, 1996.”

1994—Pub. L. 103–305 substituted “The total amounts which shall be available after September 30, 1981, to the Secretary of Transportation” for “Not more than a total of $15,966,700,000 is available to the Secretary of Transportation for the fiscal years ending September 30, 1982–1993,” and inserted before period at end “shall be $17,583,500,000 for fiscal years ending before October 1, 1994, $19,744,500,000 for fiscal years ending before October 1, 1995, and $21,958,500,000 for fiscal years ending before October 1, 1996”.

Amendment by Pub. L. 110–253 effective July 1, 2008, see section 4(c) of Pub. L. 110–253, set out as a note under section 47104 of this title.

Amendment by Pub. L. 108–176 applicable only to fiscal years beginning after Sept. 30, 2003, except as otherwise specifically provided, see section 3 of Pub. L. 108–176, set out as a note under section 106 of this title.

Amendment by Pub. L. 106–181 applicable only to fiscal years beginning after Sept. 30, 1999, see section 3 of Pub. L. 106–181, set out as a note under section 106 of this title.

Except as otherwise specifically provided, amendment by Pub. L. 104–264 applicable only to fiscal years beginning after Sept. 30, 1996, and not to be construed as affecting funds made available for a fiscal year ending before Oct. 1, 1996, see section 3 of Pub. L. 104–264, set out as a note under section 106 of this title.

Pub. L. 106–181, title I, § 159, Apr. 5, 2000, 114 Stat. 90, provided that: