104 STAT. 2468 PUBLIC LAW 101-549—NOV. 15, 1990 (j) DEFINITIONS.— Section 302 of the Clean Air Act (42 U.S.C. 7602) is amended as follows: (1) Insert the following new subsections after subsection (r): "(s) VOC.—The term 'VOC' means volatile organic compound, as defined by the Administrator. "(t) PM-10. — The term 'PM-10' means particulate matter with an aerod3niamic diameter less than or equal to a nominal ten micrometers, as measured by such method as the Administrator may determine. "(u) NAAQS AND CTG.—The term 'NAAQS' means national ambient air quality standard. The term 'CTG' means a Control Technique Guideline published by the Administrator under section 108. "(v) NOx-— The term 'NO,' means oxides of nitrogen. "(w) CO. — The term 'CO' means carbon monoxide. "(x) SMALL SOURCE.—The term 'small source' means a source that emits less than 100 tons of regulated pollutants per year, or any class of persons that the Administrator determines, through regulation, generally lack technical ability or knowledge regarding control of air pollution. "(y) FEDERAL IMPLEMENTATION PLAN. —The term 'Federal implementation plan' means a plan (or portion thereof) promulgated by the Administrator to fill all or a portion of a gap or otherwise correct all or a portion of an inadequacy in a State implementation plan, and which includes enforceable emission limitations or other control measures, means or techniques (including economic incentives, such as marketable permits or auctions of emissions allowances), and provides for attainment of the relevant national ambient air quality standard.". (2) Section 302(g) of the Clean Air Act (42 U.S.C. 7602(g)) is amended by adding the following at the end: "Such term includes any precursors to the formation of any air pollutant, to the extent the Administrator has identified such precursor or precursors for the particular purpose for which the term 'air pollutant' is used.". (k) POLLUTION PREVENTION.— Section 101 of the Clean Air Act (42 U.S.C. 7401) is amended as follows: (1) Amend subsection (a)(3) to read as follows: "(3) that air pollution prevention (that is, the reduction or elimination, through any measures, of the amount of pollutants produced or created at the source) and air pollution control at its source is the primary responsibility of States and local governments; and". (2) Amend subsection (b)(4) by inserting "prevention and" immediately after "pollution". (3) Add a new subsection (c) to read as follows: "(c) POLLUTION PREVENTION.— A primary goal of this Act is to encourage or otherwise promote reasonable Federal, State, and local governmental actions, consistent with the provisions of this Act, for pollution prevention.". (1) Part D of title I of the Clean Air Act is amended by adding a new subpart after subpart 5 as follows: "Subparts—Savings Provisions "Sec. 193. General savings clause.
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