PUBLIC LAW 101-549—NOV. 15, 1990 104 STAT. 2515 the case of clean-fuel vehicles which are light-duty trucks of more than 3,750 lbs. loaded vehicle weight (Ivw) but not more than 5,750 lbs. Ivw and not more than 6,000 lbs. gross weight rating (GVWR): "(1) PHASE I. —Beginning with model year 1996, for the air pollutants specified in the following table, the clean-fuel vehicle standards under this section shall provide that vehicle exhaust emissions shall not exceed the levels specified in the following table. PHASE I CLEAN FUEL VEHICLE EMISSION STANDARDS FOR LIGHT-DUTY TRUCKS OF MORE THAN 3,750 LBS. AND UP TO 5,750 LBS. LVW AND UP TO 6,000 LBS. GVWR Pollutant 50,000 mile standard 100,000 mile standard NMOG 0.160 0.200 CO 4.4 5.5 NO, 0.7 0.9 PM* 0.08 HCHO (formaldehyde) . 0.018 0.023 Standards are expressed in grams per mile (gpm). 'Standards for particulates (PM) shall apply only to diesel-fueled vehicles. In the case of the 50,000 mile standards and the 100,000 mile standards, for purposes of certification, the applicable useful life shall be 50,000 miles or 100,000 miles, respectively. "(2) PHASE II. — Beginning with model year 2001, for the air pollutants specified in the following table, the clean-fuel vehicle standards under this section shall provide that vehicle exhaust emissions shall not exceed the levels specified in the following table. PHASE II CLEAN FUEL VEHICLE EMISSION STANDARDS FOR LIGHT- DUTY TRUCKS OF MORE THAN 3,750 LBS. LVW AND UP TO 5,750 LBS. LVW AND UP TO 6,000 LBS. GVWR Pollutant 50,000 mile standard 100,000 mile standard NMOG 0.100 0.130 CO 4.4 5.5 NO, 0.4 0.5 HCHO PM* (formaldehyde) 0.018 0.08 0.023 Standards are expressed in grams per mile (gpm). 'Standards for particulates (PM) shall apply only to diesel-fueled vehicles. In the case of the 50,000 mile standards and the 100,000 mile standards, for purposes of certification, the applicable useful life shall be 50,000 miles or 100,000 miles, respectively. "(c) EXHAUST STANDARDS FOR LIGHT-DUTY TRUCKS GREATER THAN 6,000 LBS. GVWR.—The standards set forth in this subsection shall apply in the case of clean-fuel vehicles which are light-duty trucks of more than 6,000 lbs. gross weight rating (GVWR) and less than or equal to 8,500 lbs. GVWR, beginning with model year 1998. For the air pollutants specified in the following table, the clean-fuel vehicle standards under this section shall provide that vehicle exhaust emissions of vehicles within the test weight categories specified in the following table shall not exceed the levels specified in such table.
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