PUBLIC LAW 101-549—NOV. 15, 1990 104 STAT. 2531 and judicial branches of the Federal Government having jurisdiction over any property or facility shall require all employees which operate motor vehicles on the property or facility to furnish proof of compliance with the applicable requirements of any vehicle inspection and maintenance program established under the provisions of subpart 2 of part D or subpart 3 of part D for the State in which such property or facility is located (without regard to whether such vehicles are registered in the State). The installation shall use one of the following methods to establish proof of compliance— "(1) presentation by the vehicle owner of a valid certificate of compliance from the vehicle inspection and maintenance program; "(2) presentation by the vehicle owner of proof of vehicle registration within the geographic area covered by the vehicle inspection and maintenance program (except for any program whose enforcement mechanism is not through the denial of vehicle registration); "(3) another method approved by the vehicle inspection and maintenance program administrator.". TITLE III—HAZARDOUS AIR POLLUTANTS Sec. 301. Hazardous Air Pollutants. Sec. 302. Conforming Amendment. Sec. 303. Risk Assessment and Management Commission. Sec. 304. Chemical Process Safety Management. Sec. 305. Solid Waste Combustion. Sec. 306. Ash Management and Disposal. SEC. 301. HAZARDOUS AIR POLLUTANTS. Section 112 of the Clean Air Act is amended to read as follows: 42 USC 7412. "SEC. 112. HAZARDOUS AIR POLLUTANTS. "(a) DEFINITIONS.—For purposes of this section, except subsection (r)- "(1) MAJOR SOURCE. —The term 'major source' means any stationary source or group of stationary sources located within a contiguous area and under common control that emits or has the potential to emit considering controls, in the aggregate, 10 tons per year or more of any hazardous air pollutant or 25 tons per year or more of any combination of hazardous air pollutants. The Administrator may establish a lesser quantity, or in the case of radionuclides different criteria, for a major source than that specified in the previous sentence, on the basis of the potency of the air pollutant, persistence, potential for bioaccumulation, other characteristics of the air pollutant, or other relevant factors. "(2) AREA SOURCE. —The term 'area source' means any stationary source of hazardous air pollutants that is not a major source. For purposes of this section, the term 'area source' shall not include motor vehicles or nonroad vehicles subject to regulation under title II. "(3) STATIONARY SOURCE. —The term 'stationary source' shall have the same meaning as such term has under section 111(a). "(4) NEW SOURCE. —The term 'new source' means a stationary source the construction or reconstruction of which is commenced after the Administrator first proposes regulations
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