Emissions testing laws are a crucial component in the fight against air pollution and climate change, yet these regulations vary significantly across the United States. Understanding these differences ...

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Coverage terms in an emission warranty vary by component. Most emissions-related parts are covered for two years or 24,000 ...

CONCORD — Auto dealers and the state’s chapter of the Sierra Club were both in opposition to the state asking to opt out of federal vehicle emissions testing at a hearing Monday in Concord. While the ...