Union of Concerned Scientists

DECEMBER 15, 2022

The EPA is getting ready to finalize a critical regulation limiting emissions of smog-forming nitrogen oxide (NO X ) and soot (or particulate matter, PM 2.5 ) from new heavy-duty trucks. This is the first time EPA has sought to limit emissions in over two decades, and it is long overdue.

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Regulations 2027 Nitrogen Oxides Technology 211

Union of Concerned Scientists

OCTOBER 13, 2022

and nitrogen oxides (NOx) from the numerous commercial and government fleets of MHD vehicles in the state. The ACF is an opportunity to deliver meaningful reductions in air pollution for the most affected communities, but the current proposal falls short of what is technologically and economically feasible.

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Union of Concerned Scientists

SEPTEMBER 26, 2022

All in all, the rule as currently proposed is estimated to have a net societal benefit of nearly $47 billion through 2050, accounting for significant reductions in health expenditures, savings to fleets from reduced fuel and maintenance costs, and costs to governments and businesses for the buildout of vehicle charging infrastructure.

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Union of Concerned Scientists

OCTOBER 4, 2023

leader in cleaning up the light duty fleet quietly released its own proposal in August: the Department of Transportation’s National Highway Traffic Safety Administration (NHTSA) has proposed to improve fuel economy of passenger cars and trucks steadily from 2027 through 2032 and heavy-duty pickups and vans from 2030 to 2035.

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Electricity Clean Air Act Carbon Dioxide 2027 253

Union of Concerned Scientists

NOVEMBER 28, 2023

This year, the Environmental Protection Agency (EPA) and National Highway Traffic Safety Administration (NHTSA) proposed new emissions and fuel economy standards (respectively) for model year 2027-2032 passenger cars and light trucks (sedans, utility vehicles, pickups, etc.).

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2026 Climate Change Nitrogen Oxides Greenhouse 252

Legal Planet

OCTOBER 5, 2023

The transportation sector is also a substantial source of nitrogen oxides and particulates, both of which are dangerous to human health. EPA has considered electrification technologies in many past rulemakings and has used fleet average standards for decades. Transportation is now the source of 28% of U.S.

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