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The Environmental Protection Agency (EPA) announced the toughest US standards yet for greenhouse gas emissions from heavy-duty vehicles like big rigs and buses. The rules apply to model year 2027 to 2032 heavy-duty vehicles and are meant to slash emissions from a major source of the pollution causing climate change.
Heavy-duty vehicles are responsible for a quarter of the nation’s transportation-related greenhouse gas emissions. The EPA says its new standards will avoid a billion tons of those emissions by 2055, which would be like eliminating the pollution from 13 million tanker trucks’ worth of gasoline.
