Union of Concerned Scientists
MARCH 29, 2024
The Environmental Protection Agency (EPA) just finalized its Phase 3 greenhouse gas regulation as a part of the administration’s plan to decarbonize the transportation sector. The Phase 3 regulation will cut new greenhouse gas emissions from trucks in 2032 by 32 to 62 percent for vocational trucks (e.g.,
Union of Concerned Scientists
DECEMBER 21, 2023
While industry tried to paint hydrogen combustion engines as a “bridge” technology to hydrogen fuel cells, their own presentations undermined that very point—instead, this path is a clear dead end. We need to make sure regulators like EPA and CARB restrict its usage before it gains a fossil-fueled foothold in the marketplace.
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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.
Union of Concerned Scientists
MARCH 26, 2024
They will go into effect in model year 2027 and steadily increase in stringency through model year 2032. This is a common sense step that relies on affordable, proven technology already in use in millions of gasoline vehicles outside the US. These new rules apply to all auto manufacturers and only affect new vehicle sales. Far from it.
Legal Planet
OCTOBER 5, 2023
EPA is an effort by conservative states and fuel suppliers to block EPA regulations of greenhouse gas emissions from motor vehicles under the Clean Air Act. Ohio and some other states argue that the waiver unconstitutionally gives California more power to regulate than it gives them. EPA to overturn Obama’s Clean Power Plan.
Union of Concerned Scientists
JUNE 1, 2022
And as EPA moves forward with its own proposal to finally strengthen truck pollution regulations, industry has been waging an all-out war on those, too. This fight by industry to delay, obstruct, and otherwise thwart stronger regulation has devastating consequences. The result of that is the erosion described above.
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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