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(c) AUTHORIZATION OF CONTRACT AUTHORITY.—
Section 1101(c)(1) of the Transportation Equity Act for 
the 21st Century (117 Stat. 1111; 118 Stat. 478; 118 
Stat. 627; 118 Stat. 698) is amended by striking 
‘‘$26,998,288,667 for the period of October 1, 2003, 
through July 31, 2004’’ and inserting ‘‘$30,469,806,615 
for the period of October 1, 2003, through September 24, 
2004’’. 
(d) LIMITATION ON OBLIGATIONS.—Section 2(e) of 
the Surface Transportation Extension Act of 2003 (117 
Stat. 1111; 118 Stat. 478; 118 Stat. 627) is amended—
(1) in the matter preceding subparagraph (A) 
of paragraph (1) by striking ‘‘July 31’’ and insert-
ing ‘‘September 24’’; 
(2) in paragraph (1)(A)—
(A) by striking ‘‘Part II, and’’ and insert-
ing ‘‘Part II,’’; and 
(B) by inserting after ‘‘Part III’’ the fol-
lowing: ‘‘, and the Surface Transportation Ex-
tension Act of 2004, Part IV’’; 
(3) in paragraph (1)(B) by striking ‘‘10⁄12’’ and 
inserting ‘‘49⁄52’’; 
(4) in paragraph (2)—
(A) by striking ‘‘July 31’’ and inserting 
‘‘September 24’’;
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(B) by striking ‘‘$28,202,500,000’’ and in-
serting ‘‘$31,890,519,230’’; and 
(C) by striking ‘‘$532,500,000’’ and in-
serting ‘‘$602,134,615’’; 
(5) in paragraph (3) by striking ‘‘July 31’’ and 
inserting ‘‘September 24’’; and 
(6) by adding at the end the following: 
‘‘(5) CALCULATION OF RATIO.—For purposes of 
the calculation of the ratio under section 110(a)(3) 
of the Transportation, Treasury, and Independent 
Agencies Appropriations Act, 2004 (division F of 
Public Law 108-199; 118 Stat. 291; 23 U.S.C. 104 
note)—
‘‘(A) the obligation limitation for Federal-
aid 
Highways 
referred 
to 
in 
section 
110(a)(3)(A) of such Act shall be deemed to be 
the obligation limitation for Federal-aid high-
ways and highway safety construction programs 
for fiscal year 2004 identified under the head-
ing ‘FEDERAL-AID HIGHWAYS’ in such Act 
(118 Stat. 290); and 
‘‘(B) the total of sums authorized to be ap-
propriated for Federal-aid highways and high-
way safety construction programs (other than 
sums authorized to be appropriated for sections
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set forth in paragraphs (1) through (7) of sec-
tion 110(b) of such Act and sums authorized to 
be appropriated for section 105 of title 23, 
United States Code, equal to the amount re-
ferred to in subsection 110(b)(8) of such Act) 
for such fiscal year, referred to in section 
110(a)(3)(B) of such Act, shall be deemed to be 
$34,606,000,000, less the aggregate of the 
amounts 
not 
distributed 
under 
section 
110(a)(1) of such Act.’’. 
SEC. 3. REPAYMENT FROM FUTURE APPORTIONMENTS. 
Section 2(c) of the Surface Transportation Extension 
Act of 2003 (117 Stat. 1111) is amended—
(1) in paragraph (1) by striking ‘‘a law reau-
thorizing the Federal-aid highway program enacted 
after the date of enactment of this Act’’ and insert-
ing ‘‘the Surface Transportation Extension Act of 
2004, Part IV’’; and 
(2) in paragraph (2) by striking ‘‘a law de-
scribed in paragraph (1)’’ and inserting ‘‘the Sur-
face Transportation Extension Act of 2004, Part 
IV’’. 
SEC. 4. OTHER FEDERAL-AID HIGHWAY PROGRAMS. 
(a) AUTHORIZATION
OF APPROPRIATIONS UNDER 
TITLE I OF TEA–21.—
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(1) FEDERAL LANDS HIGHWAYS.—
(A) INDIAN
RESERVATION
ROADS.—Sec-
tion 1101(a)(8)(A) of the Transportation Eq-
uity Act for the 21st Century (112 Stat. 112; 
117 Stat. 1113; 118 Stat. 479; 118 Stat. 628; 
118 Stat. 699) is amended—
(i) in the first sentence by striking 
‘‘2003 and $229,166,667 for the period of 
October 1, 2003, through July 31,’’; and 
(ii) by striking the second sentence. 
(B) PUBLIC
LANDS
HIGHWAYS.—Section 
1101(a)(8)(B) of such Act (112 Stat. 112; 117 
Stat. 1113; 118 Stat. 480; 118 Stat. 628; 118 
Stat. 699) is amended by striking ‘‘2003 and 
$205,000,000 for the period of October 1, 
2003, through July 31,’’. 
(C) PARK
ROADS
AND
PARKWAYS.—Sec-
tion 1101(a)(8)(C) of such Act (112 Stat. 112; 
117 Stat. 1113; 118 Stat. 480; 118 Stat. 628; 
118 Stat. 699) is amended by striking ‘‘2003 
and $137,500,000 for the period of October 1, 
2003, through July 31,’’ . 
(D) 
REFUGE
ROADS.—Section 
1101(a)(8)(D) of such Act (112 Stat. 112; 117 
Stat. 1113; 118 Stat. 480; 118 Stat. 628; 118