In recent days, the implementation of the National Technical Standard on emissions for automobiles, especially those using ...

Each year, certain vehicles in 13 metro Atlanta counties must pass an emissions test before they can be registered with the state. While the majority pass with no issue, a number of vehicles fail due ...

Across the United States, the rules for checking tailpipe pollution are quietly shifting, even as climate targets grow more ambitious and electric vehicles grab headlines. States are carving out ...

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