PUBLIC LAW 101-549—NOV. 15, 1990 104 STAT. 2687 Such activities include, but are not limited to, platform and drill ship exploration, construction, development, production, processing, and transportation. For purposes of this subsection, emissions from any vessel servicing or associated with an OCS source, including emissions while at the OCS source or en route to or from the OCS source within 25 miles of the OCS source, shall be considered direct emissions from the OCS source. "(D) NEW AND EXISTING OCS SOURCES.— The term 'new OCS source' meems an OCS source which is a new source within the meaning of section 111(a). The term 'existing OCS source' means any OCS source other than a new OCS source. "(b) REQUIREMENTS FOR OTHER OFFSHORE AREAS.— For portions of the United States Gulf Coast Outer Continental Shelf that are adjacent to the States not covered by subsection (a) which are Texas, Louisiana, Mississippi, and Alabama, the Secretary shall consult with the Administrator to assure coordination of air pollution control regulation for Outer Continental Shelf emissions and emissions in adjacent onshore areas. Concurrently with this obligation, the Secretary shall complete within 3 years of enactment of this section a research study examining the impacts of emissions from Outer Continental Shelf activities in such areas that fail to meet the national ambient air quality standards for either ozone or nitrogen dioxide. Based on the results of this study, the Secretary shall consult with the Administrator and determine if any additional actions are necessary. There are authorized to be appropriated such Appropriation sums as may be necessary to provide funding for the study required authorization. under this section. "(c)(1) COASTAL WATERS.— The study report of section 112(n) of the Clean Air Act shall apply to the coastal waters of the United States to the same extent gind in the same manner as such requirements apply to the Great Lakes, the Chesapeake Bay, and their tributary waters.". "(2) The regulatory requirements of section 112(n) of the Clean Air Act shall apply to the coastal waters of the States which are subject to subsection (a) of this section, to the same extent and in the same manner as such requirements apply to the Great Lakes, the Chesapeake Bay, and their tributary waters.". SEC. 802. GRANTS FOR SUPPORT OF AIR POLLUTION PLANNING AND CONTROL PROGRAMS. (a) GRANTS.— Subparagraphs (A) and (B) of section 105(a)(l) of the Clean Air Act are amended to read as follows: 42 USC 7405. "(A) The Administrator may make grants to air pollution control agencies, within the meaning of paragraph (1), (2), (3), (4), or (5) of section 302, in an amount up to three-fifths of the cost of implementing programs for the prevention and control of air pollution or implementation of national primary and secondary ambient air quality standards. For the purpose of this section, 'implementing' means any activity related to the planning, developing, establishing, carrying-out, improving, or maintaining of such programs. "(B) Subject to subsections (b) and (c) of this section, an air pollution control agency which receives a grant under subparagraph (A) and which contributes less than the required two-fifths minimum shall have 3 years following the date of the enactment of the Clean Air Act Amendments of 1990 in which to contribute such amount. If such an agency fails to meet and maintain this required
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