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SEC. 1104. MINIMUM GUARANTEE.

    (a) In General.--Section 105 of title 23, United States Code, is 
amended to read as follows:

``Sec. 105. Minimum guarantee

    ``(a) General Rule.--For each of fiscal years 1998 through 2003, 
the Secretary shall allocate among the States amounts sufficient to 
ensure that each State's percentage of the total apportionments for 
such fiscal year of Interstate maintenance, national highway system, 
bridge, congestion mitigation and air quality improvement, surface 
transportation, metropolitan planning, minimum guarantee, high priority 
projects, Appalachian development highway system, and recreational 
trails programs shall equal the percentage listed for each State in 
subsection (b).
    ``(b) State Percentages.--The percentage for each State referred to 
in subsection (a) shall be determined in accordance with the following 
table:

``States:                                                 Percentage
                                                              
Alabama................................................... 2.0269
 Alaska.................................................... 1.1915
 Arizona................................................... 1.5581
 Arkansas.................................................. 1.3214
 California................................................ 9.1962
 Colorado.................................................. 1.1673
 Connecticut............................................... 1.5186
 Delaware.................................................. 0.4424
 District of Columbia...................................... 0.3956
 Florida................................................... 4.6176
 Georgia................................................... 3.5104
 Hawaii.................................................... 0.5177
 Idaho..................................................... 0.7718
 Illinois.................................................. 3.3819
 Indiana................................................... 2.3588
 Iowa...................................................... 1.2020
 Kansas.................................................... 1.1717
 Kentucky.................................................. 1.7365
 Louisiana................................................. 1.5900
 Maine..................................................... 0.5263
 Maryland.................................................. 1.5087
 Massachusetts............................................. 1.8638
 Michigan.................................................. 3.1535
 Minnesota................................................. 1.4993
 Mississippi............................................... 1.2186
 Missouri.................................................. 2.3615
 Montana................................................... 0.9929
 Nebraska.................................................. 0.7768
 Nevada.................................................... 0.7248
 New Hampshire............................................. 0.5163
 New Jersey................................................ 2.5816
 New Mexico................................................ 0.9884
 New York.................................................. 5.1628
 North Carolina............................................ 2.8298
 North Dakota.............................................. 0.6553
 Ohio...................................................... 3.4257
 Oklahoma.................................................. 1.5419
 Oregon.................................................... 1.2183
 Pennsylvania.............................................. 4.9887
 Rhode Island.............................................. 0.5958
 South Carolina............................................ 1.5910
 South Dakota.............................................. 0.7149
 Tennessee................................................. 2.2646
 Texas..................................................... 7.2131
 Utah...................................................... 0.7831
 Vermont................................................... 0.4573
 Virginia.................................................. 2.5627
 Washington................................................ 1.7875
 West Virginia............................................. 1.1319
 Wisconsin................................................. 1.9916
 Wyoming................................................... 0.6951

    ``(c) Treatment of Funds.--
        ``(1) Programmatic distribution.--The Secretary shall apportion 
    50 percent of the amounts made available under this section that 
    exceed $2,800,000,000 so that the amount apportioned to each State 
    under this paragraph for each program referred to in subsection (a) 
    (other than metropolitan planning, minimum guarantee, high priority 
    projects, Appalachian development highway system, and recreational 
    trails programs) is equal to the amount determined by multiplying 
    the amount to be apportioned under this paragraph by the ratio 
    that--
            ``(A) the amount of funds apportioned to each State for 
        each program referred to in subsection (a) for a fiscal year; 
        bears to
            ``(B) the total amount of funds apportioned to all States 
        for such program for such fiscal year.
        ``(2) Remaining distribution.--The Secretary shall apportion 
    the remainder of funds made available under this section to the 
    States in accordance with section 104(b)(3); except that 
    requirements of paragraphs (1), (2), and (3) of section 133(d) 
    shall not apply to amounts apportioned pursuant to this paragraph.
    ``(d) 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 section for each of fiscal 
years 1998 through 2003.
    ``(e) Special Rule.--If in any of fiscal years 1999 through 2003, 
the amount authorized under subsection (d) is more than 30 percent 
higher than the amount authorized under subsection (d) in fiscal year 
1998, the Secretary shall use the apportionment factors under sections 
104 and 144 as in effect on the date of enactment of this section.
    ``(f) Guarantee of 90.5 Return.--
        ``(1) In general.--Before making any apportionment under this 
    title for each of fiscal years 1999 through 2003, the Secretary, 
    subject to paragraph (2), shall adjust the percentages in the table 
    in subsection (b) to reflect the estimated percentage of estimated 
    tax payments attributable to highway users in each State paid into 
    the Highway Trust Fund (other than the Mass Transit Account) in the 
    latest fiscal year for which data is available, to ensure that no 
    State's return from such Trust Fund is less than 90.5 percent.
        ``(2) Eligibility threshold for initial adjustment.--The 
    Secretary may make an adjustment under paragraph (1) for a State 
    for a fiscal year only if the State's return from the Highway Trust 
    Fund (other than the Mass Transit Account) for the preceding fiscal 
    year was equal to or less than 90.5 percent.
        ``(3) Conforming adjustments.--After making any adjustments 
    under paragraph (1) for a fiscal year, the Secretary shall adjust 
    the remaining percentages in the table set forth in subsection (b) 
    to ensure that the total of the percentages in the table do not 
    exceed 100 percent for such fiscal year.
        ``(4) Limitation on adjustments.--After making any adjustments 
    under paragraph (3) for a fiscal year, the Secretary shall 
    determine whether or not any State's return from the Highway Trust 
    Fund (other than the Mass Transit Account) is less than 90.5 
    percent as a result of such adjustments and shall adjust the 
    percentages in the table for such fiscal year accordingly. 
    Adjustments of the percentages in the table under this paragraph 
    may not result in the total of such percentages exceeding 100 
    percent.''.
    (b) Conforming Amendment.--The analysis for chapter 1 of such title 
is amended by striking the item relating to section 105 and inserting 
the following:
``105. Minimum guarantee.''.

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