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Under the LEV II regulation, the light-duty truck and medium-duty vehicle categories of below 8500 lbs gross weight were reclassified and had to meet passenger car requirements, as shown in Table 3. Manufacturers may certify vehicles to LEV II emission standards (categories) until model year 2019. In November 1998, the California ARB adopted LEV II emission standards which were phased-in from 2004 through 2010. Low Emission Vehicle II (LEV II) Standards The definition of “test weight” in California is identical to the Federal ALVW. The MDV category is divided into five classes, MDV1. MDV - medium-duty vehicle (the maximum GVW from 8,500 to 14,000 lbs). LEV emission standards for medium-duty vehicles, FTP-75, g/mi Category LVW - loaded vehicle weight (curb weight + 300 lbs)Įmission standards for medium-duty vehicles are summarized in Table 2. LEV Emission standards for light-duty vehicles, FTP-75, g/mi Category The additional SFTP procedures were phased-in in California between 20. Emissions were measured over the FTP-75 test and are expressed in g/mile. PM standards applied to diesel vehicles only. The same standards for gaseous pollutants applied to diesel- and gasoline-fueled vehicles. After 2003, Tier 1 and TLEV standards were eliminated as available emission categories. Super Ultra Low Emission Vehicles (SULEV)Ĭar manufacturers were required to produce a percentage of vehicles certified to increasingly more stringent emission categories, according to schedules based on vehicle fleet emission averages for each manufacturer.Transitional Low Emission Vehicles (TLEV).These California emission standards, which applied through model year 2003, were expressed using the following emission categories: LEV III California regulations are phased-in through model years 2015-2025.Ī number of other states have adopted California emission standards.
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LEV II California regulations were phased-in through model years 2004-2010.Tier 1/LEV California emission standards extended through the year 2003.The major regulatory steps in the evolution of California emission standards include: Low Emission Vehicle III (LEV III) StandardsĬalifornia emission standards have been traditionally more stringent than the EPA requirements, but their structure is similar to that of the federal regulations.Low Emission Vehicle II (LEV II) Standards.Emission Standards United States: Cars and Light-Duty Trucks: California