PUBLIC LAW 105-178—JUNE 9, 1998 112 STAT. 141 "(i) the aggregate amount of obligation authority distributed to the State for Federal-aid highways and highway safety construction programs during the period; bears to "(ii) the total of the sums apportioned to the State for Federal-aid highways and highway safety construction programs (excluding sums not subject to an obligation limitation) during the period. "(2) JOINT RESPONSIBILITY.—Each State, each affected metropolitan planning organization, and the Secretary shall jointly ensure compliance with paragraph (1).". (f) DIVISION OF STP FUNDS FOR AREAS OF LESS THAN 5,000 23 USC 133 note. POPULATION.— (1) SPECIAL RULE.—Notwithstanding section 133(c) of title 23, United States Code, and except as provided in paragraph (2), up to 15 percent of the amounts required to be obligated under section 133(d)(3)(B) of such title for each of fiscal years 1998 through 2003 may be obligated on roads functionally classified as minor collectors. (2) SUSPENSION. —The Secretary may suspend the application of paragraph (1) if the Secretary determines that paragraph (1) is being used excessively. (g) ENCOURAGEMENT OF USE OF YOUTH CONSERVATION OR SERV- 23 USC 133 note. ICE CORPS. —The Secretary shall encourage the States to enter into contracts and cooperative agreements with qualified youth conservation or service corps to perform appropriate transportation enhancement activities under chapter 1 of title 23, United States Code. SEC. 1109. HIGHWAY BRIDGE PROGRAM. (a) APPORTIONMENT FORMULA.—Section 144(e) of title 23, United States Code, is amended in the fourth sentence by inserting before the period at the end the following: ", and, if a State transfers funds apportioned to the State under this section in a fiscal year beginning after September 30, 1997, to any other apportionment of funds to such State under this title, the total cost of deficient bridges in such State and in all States to be determined for the succeeding fiscal year shall be reduced by the amount of such transferred funds". (b) DISCRETIONARY BRIDGE SET-ASIDE. —Section 144(g)(1) of such title is amended— (1) by inserting "(A) FISCAL YEARS 1992 THROUGH 1997.—" before "Of the amounts"; (2) by adding at the end the following: "(B) FISCAL YEAR 1998.— Of the amounts authorized to be appropriated to carry out the bridge program under this section for fiscal year 1998, all but $25,000,000 shall be apportioned as provided in subsection (e) of this section. Such $25,000,000 shall be available only for projects for the seismic retrofit of a bridge described in subsection (1). "(C) FISCAL YEARS 1999 THROUGH 2003.— Of the amounts authorized to b^ appropriated to carry out the bridge program under this section for each of fiscal years 1999 through 2003, all but $100,000,000 shall be apportioned as provided in subsection (e). Such $100,000,000 shall be available at the discretion of the Secretary; except that
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