(e) PROJECT AUTHORIZATIONS
FOR NEW FIXED 
GUIDEWAY
CAPITAL
PROJECTS.—Section 
3043 
of 
SAFETEA–LU (119 Stat. 1640) is amended— 
(1) in subsection (b), in the matter preceding 
paragraph (1), by striking ‘‘2011 and the period be-
ginning on October 1, 2011, and ending on March 
31, 2012,’’ and inserting ‘‘2011 and the period be-
ginning on October 1, 2011, and ending on June 30, 
2012,’’; and 
(2) in subsection (c), in the matter preceding 
paragraph (1), by striking ‘‘2011 and the period be-
ginning on October 1, 2011, and ending on March 
31, 2012,’’ and inserting ‘‘2011 and the period be-
ginning on October 1, 2011, and ending on June 30, 
2012,’’. 
(f) ALLOCATIONS FOR NATIONAL RESEARCH AND 
TECHNOLOGY
PROGRAMS.—Section 
3046(c)(2) 
of 
SAFETEA–LU (49 U.S.C. 5338 note; 119 Stat. 1706) 
is amended to read as follows: 
‘‘(2) for the period beginning on October 1, 
2011, and ending on June 30, 2012, in amounts 
equal to 47 percent of the amounts allocated for fis-
cal year 2009 under each of paragraphs (2), (3), 
(5), and (8) through (25) of subsection (a).’’.
TITLE IV—HIGHWAY TRUST 
FUND EXTENSION 
SEC. 401. EXTENSION OF TRUST FUND EXPENDITURE AU-
THORITY. 
(a) HIGHWAY TRUST FUND.—Section 9503 of the 
Internal Revenue Code of 1986 is amended— 
(1) by striking ‘‘April 1, 2012’’ in subsections 
(b)(6)(B), (c)(1), and (e)(3) and inserting ‘‘July 1, 
2012’’; and 
(2) by striking ‘‘Surface Transportation Exten-
sion Act of 2011, Part II’’ in subsections (c)(1) and 
(e)(3) and inserting ‘‘Surface Transportation Exten-
sion Act of 2012’’. 
(b) SPORT FISH RESTORATION AND BOATING TRUST 
FUND.—Section 9504 of such Code is amended— 
(1) by striking ‘‘Surface Transportation Exten-
sion Act of 2011, Part II’’ each place it appears in 
subsection (b)(2) and inserting ‘‘Surface Transpor-
tation Extension Act of 2012’’; and 
(2) by striking ‘‘April 1, 2012’’ in subsection 
(d)(2) and inserting ‘‘July 1, 2012’’. 
(c) LEAKING UNDERGROUND STORAGE TANK TRUST 
FUND.—Paragraph (2) of section 9508(e) of such Code 
is amended by striking ‘‘April 1, 2012’’ and inserting 
‘‘July 1, 2012’’.
(d) EFFECTIVE DATE.—The amendments made by 
this section shall take effect on April 1, 2012. 
SEC. 402. EXTENSION OF HIGHWAY-RELATED TAXES. 
(a) IN GENERAL.— 
(1) Each of the following provisions of the In-
ternal Revenue Code of 1986 is amended by striking 
‘‘March 31, 2012’’ and inserting ‘‘June 30, 2012’’: 
(A) Section 4041(a)(1)(C)(iii)(I). 
(B) Section 4041(m)(1)(B). 
(C) Section 4081(d)(1). 
(2) Each of the following provisions of such 
Code is amended by striking ‘‘April 1, 2012’’ and in-
serting ‘‘July 1, 2012’’: 
(A) Section 4041(m)(1)(A). 
(B) Section 4051(c). 
(C) Section 4071(d). 
(D) Section 4081(d)(3). 
(b) EXTENSION OF TAX, ETC., ON USE OF CERTAIN 
HEAVY VEHICLES.—Each of the following provisions of 
such Code is amended by striking ‘‘2012’’ and inserting 
‘‘2013’’: 
(1) Section 4481(f). 
(2) Subsections (c)(4) and (d) of section 4482. 
(c) FLOOR STOCKS REFUNDS.—Section 6412(a)(1) 
of such Code is amended—
(1) by striking ‘‘April 1, 2012’’ each place it 
appears and inserting ‘‘July 1, 2012’’; 
(2) by striking ‘‘September 30, 2012’’ each 
place it appears and inserting ‘‘December 31, 
2012’’; and 
(3) by striking ‘‘July 1, 2012’’ and inserting 
‘‘October 1, 2012’’. 
(d) EXTENSION
OF CERTAIN EXEMPTIONS.—Sec-
tions 4221(a) and 4483(i) of such Code are each amended 
by striking ‘‘April 1, 2012’’ and inserting ‘‘July 1, 2012’’. 
(e) EXTENSION
OF
TRANSFERS
OF
CERTAIN 
TAXES.— 
(1) IN GENERAL.—Section 9503 of such Code 
is amended— 
(A) in subsection (b)— 
(i) by striking ‘‘April 1, 2012’’ each 
place it appears in paragraphs (1) and (2) 
and inserting ‘‘July 1, 2012’’; 
(ii) by striking ‘‘APRIL 1, 2012’’ in the 
heading of paragraph (2) and inserting 
‘‘JULY 1, 2012’’; 
(iii) by striking ‘‘March 31, 2012’’ in 
paragraph (2) and inserting ‘‘June 30, 
2012’’; and
(iv) by striking ‘‘January 1, 2013’’ in 
paragraph (2) and inserting ‘‘April 1, 
2013’’; and 
(B) in subsection (c)(2), by striking ‘‘Jan-
uary 1, 2013’’ and inserting ‘‘April 1, 2013’’. 
(2) MOTORBOAT AND SMALL-ENGINE FUEL TAX 
TRANSFERS.— 
(A) IN
GENERAL.—Paragraphs (3)(A)(i) 
and (4)(A) of section 9503(c) of such Code are 
each amended by striking ‘‘April 1, 2012’’ and 
inserting ‘‘July 1, 2012’’. 
(B) CONFORMING AMENDMENTS TO LAND 
AND
WATER
CONSERVATION
FUND.—Section 
201(b) of the Land and Water Conservation 
Fund Act of 1965 (16 U.S.C. 460l–11(b)) is 
amended— 
(i) by striking ‘‘April 1, 2013’’ each 
place it appears and inserting ‘‘July 1, 
2013’’; and 
(ii) by striking ‘‘April 1, 2012’’ and 
inserting ‘‘July 1, 2012’’.
(f) EFFECTIVE DATE.—The amendments made by 
this section shall take effect on April 1, 2012. 
Passed the House of Representatives March 29, 
2012. 
Attest: 
Clerk.
112TH CONGRESS 
2D SESSION 
H. R. 4281 
AN ACT 
To provide an extension of Federal-aid highway, 
highway safety, motor carrier safety, transit, and 
other programs funded out of the Highway Trust 
Fund pending enactment of a multiyear law re-
authorizing such programs.