2009 Emissions Testing IT 
Tomorrow's Technician
NOVEMBER 27, 2023
New York is the first state to mandate that a vehicle with California emissions and converters must always be replaced with a CARB-certified converter, even if it is never going back to California. There have been long-standing policy debates in Maine, Washington and other states on emissions testing and standards.
Hollenshades Auto Service
JULY 7, 2023
Presently, the main driving standard for emissions output by vehicle powertrains are the US EPA Tier 2 and California LEV-II ULEV regulations. In 1999, the US EPA announced new Tier 2 NOx limits of 0.07gm per mile to replace the existing Tier 1 limits of 1.0gm per mile that were phased in from 2004 to 2009.
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