105 STAT. 1990 PUBLIC LAW 102-240—DEC. 18, 1991 (C) that asphalt pavement containing recycled rubber does not perform adequately as a material for the construction or surfacing of highways and roads. The Secretary shall consider the results of the study under subsection (b)(1) in determining whether a 3-year set-aside is appropriate. (6) RENEWAL OF WAIVER.—Any determination made to set aside the requirements of this section may be renewed for an additional 3-year period by the Secretary, with the concurrence of the Administrator with respect to the determinations made under paragraphs (5)(A) and (5)(B). Any determination made with respect to paragraph (5)(C) may be made for specific States or regions considering climate, geography, and other factors that may be unique to the State or region and that would prevent the adequate performance of asphalt pavement containing recycled rubber. (7) INDIVIDUAL STATE REDUCTION. —The Secretary shall establish a minimum utilization requirement for asphalt pavement containing recycled rubber less than the minimum utilization requirement otherwise required by paragraph (1) in a particular State, upon the request of such State and if the Secretary, with the concurrence of the Administrator of the Environmental Protection Agency, determines that there is not a sufficient quantity of scrap tires available in the State prior to disposal to meet the minimum utilization requirement established under paragraph (1) as the result of recycling and processing uses (in that State or another State), including retreading or energy recovery. (e) DEFINITIONS.—For purpose of this section— (1) the term "asphalt pavement containing recycled rubber" means any hot mix or spray applied binder in asphalt paving mixture that contains rubber from whole scrap tires which is used for asphalt pavement base, surface course or interlayer, or other road and highway related uses and— • (A) is a mixture of not less than 20 pounds of recycled rubber per ton of hot mix or 300 pounds of recycled rubber per ton of spray applied binder; or (B) is any mixture of asphalt pavement and recycled rubber that is certified by a State and is approved by the Secretary, provided that the total amount of recycled rubber from whole scrap tires utilized in any year in such State shall be not less than the amount that would be utilized if all asphalt pavement containing recycled rubber laid in such State met the specifications of subparagraph (A) and subsection (d)(D; and (2) the term "recycled rubber" is any crumb rubber derived from processing whole scrap tires or shredded tire material taken from automobiles, trucks, or other equipment owned and operated in the United States. 23 USC 144 note. SEC. 1039. HIGHWAY TIMBER BRIDGE RESEARCH AND DEMONSTRATION PROGRAM. (a) RESEARCH GRANTS.— The Secretary may make grants to other Federal agencies, universities, private businesses, nonprofit organizations, and any research or engineering entity to carry out research on 1 or more of the following:
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