riod of October 1, 2003, through July 31, 2004,’’ 
and inserting ‘‘2004’’. 
(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 ‘‘$30,327,130,000 
for fiscal year 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; 118 Stat. 698) 
is amended to read as follows: 
‘‘(e) LIMITATION ON OBLIGATIONS.— 
‘‘(1) DISTRIBUTION OF OBLIGATION AUTHOR-
ITY.—For fiscal year 2004, the Secretary shall dis-
tribute the obligation limitation made available for 
Federal-aid highway and highway safety construc-
tion programs under the heading ‘FEDERAL-AID 
HIGHWAYS’ in the Transportation, Treasury, and 
Independent Agencies Appropriations Act, 2004 (di-
vision F of Public Law 108–199; 118 Stat. 290) in 
accordance with section 110 of such Act (23 U.S.C. 
104 note); except that, before distributing the obli-
gation limitation under section 110(a)(6) of such
Act, the Secretary shall not distribute the obligation 
authority for the high priority projects program 
under section 4(o) of this Act for fiscal year 2004 
in an amount determined by multiplying the ratio 
determined under section 110(a)(3) of such Act by 
the amount authorized to be appropriated for fiscal 
year 2004 for such program and shall distribute 
such obligation authority following the date of enact-
ment of a multiyear law reauthorizing the Federal- 
aid highway program. Such obligation authority 
shall remain available until used and shall be in ad-
dition to the amount of any limitation imposed on 
obligations for Federal-aid highway and highway 
safety construction programs for future fiscal years. 
‘‘(2) TREATMENT OF OBLIGATIONS.—Any obli-
gation of obligation authority distributed under this 
subsection shall be considered to be an obligation for 
Federal-aid highway and highway safety construc-
tion programs for fiscal year 2004 for the purposes 
of the matter under the heading ‘FEDERAL-AID 
HIGHWAYS’ in the Transportation, Treasury, and 
Independent Agencies Appropriations Act, 2004.’’. 
(e) ADJUSTMENT FOR DONOR STATES.—Section 2 of 
such Act (117 Stat. 1110) is amended by adding at the 
end the following:
‘‘(f) ADJUSTMENT FOR DONOR STATES.— 
‘‘(1) IN
GENERAL.—After apportioning funds 
authorized under section 1101(c) of the Transpor-
tation Equity Act for the 21st Century (117 Stat. 
1111) and section 5(c)(1) of this Act, the Secretary 
shall apportion among the States amounts sufficient 
to ensure that each State’s share of apportionments 
under such sections and under this subsection is not 
less than 90.5 percent of its estimated share of pay-
ments attributable to highway users in such State 
paid into the Highway Trust Fund (other than the 
Mass Transit Account) in the latest fiscal year for 
which data are available. 
‘‘(2) AUTHORIZATION.—There are authorized to 
be appropriated out of the Highway Trust Fund 
(other than the Mass Transit Account) such sums as 
may be necessary to carry out this subsection for fis-
cal year 2004. 
‘‘(3) ADMINISTRATION OF FUNDS.—Funds ap-
portioned to a State under this subsection shall be 
available for obligation in the same manner as if 
such funds were apportioned to the State under 
chapter 1 of title 23, United States Code, shall be 
combined with funds apportioned to the State for 
the minimum guarantee program under subsection
(a), and shall be administered in the same manner 
as funds apportioned under section 105 of such 
title.’’. 
(f) CONFORMING AMENDMENTS.—Section 2(c) of 
such Act (117 Stat. 1111) is amended in each of para-
graphs (1) and (2) by striking ‘‘subsection (a)’’ and insert-
ing ‘‘subsections (a) and (f)’’. 
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.— 
(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 
Stat. 699) is amended by striking ‘‘2003 and 
$16,666,667 for the period of October 1, 2003, 
through July 31,’’.