The EPA today finalized emission standards for cars and gasoline to cut volatile organic compounds and nitrogen oxides by 80 percent, establishing a 70 percent tighter particulate matter standard and virtually eliminating fuel vapor emissions. These standards will also reduce vehicle emissions of toxic air pollutants, such as benzene by up to 30 percent.
The Tier 3 final fuel standards will reduce gasoline sulfur levels by more than 60 percent – down from 30 to 10 parts per million (ppm) in 2017. New low-sulfur gas will provide significant and immediate health benefits because every gas-powered vehicle on the road built prior to these standards will run cleaner – cutting smog-forming NOx emissions by 260,000 tons in 2018, according to EPA.
The final standards are consistent with California’s clean cars and fuels program to create a nationwide vehicle emissions program that enables automakers to sell the same vehicles in all 50 states. The standards are designed to be implemented over the same timeframe as the next phase of EPA’s national program to reduce greenhouse gas (GHG) emissions from cars and light trucks beginning in model year 2017.
By 2018, EPA estimates the cleaner fuels and cars program will annually prevent between 225 and 610 premature deaths, significantly reduce ambient concentrations of ozone and reduce nitrogen oxide emissions by about 260,000 tons. That is about 10 percent of emissions from on-highway vehicles, with those reductions reaching 25 percent (330,000 tons) by 2030.
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