Today, the US Environmental Protection Agency granted a pair of waivers to California, allowing the Golden State to continue regulating vehicle-caused air pollution within its borders. The first is for the California Air Resources Board’s Advanced Clean Cars II regulations, which apply to light- and medium-duty vehicles like passenger cars, SUVs, and smaller trucks. The second waiver is for regulations that control the amount of nitrogen oxides (NOx) that can be emitted by heavy-duty vehicles as well as off-road vehicles.
The Clean Air Act allows states to apply for a waiver from the EPA to set their own emissions standards in cases where the federal regulations are insufficient to prevent deleterious pollution. The state applied for the latest waivers late in 2023, and after a public comment period and then a review by the agency, the EPA decided to approve them.
“California has longstanding authority to request waivers from EPA to protect its residents from dangerous air pollution coming from mobile sources like cars and trucks,” said EPA Administrator Michael Regan. “Today’s actions follow through on EPA’s commitment to partner with states to reduce emissions and act on the threat of climate change.”
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