2027 Nitrogen Oxides Regulations 
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.
Legal Planet
MARCH 15, 2023
Several cities in California, including Los Angeles and in the Bay Area, have outlawed new gas hookups, but these are the first regulations that would effectively ban the sale of gas appliances. Such a Request for Information could be a potential first step toward implementing safety standards or other regulations governing their use.
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Union of Concerned Scientists
SEPTEMBER 26, 2022
Coming off its recent decision requiring all new passenger cars and trucks be zero-emission by 2035, the California Air Resources Board (CARB) is developing a first-of-its-kind regulation to reduce emissions from heavy-duty vehicles like delivery vans, big rigs, box trucks, and buses. There are more than 1.8 pollution from vehicles.
Union of Concerned Scientists
OCTOBER 13, 2022
This new regulation would apply to delivery vans, big rigs, box trucks, and buses. and nitrogen oxides (NOx) from the numerous commercial and government fleets of MHD vehicles in the state. Regulate more tractor trucks, including the smaller fleets.
PA Environment Daily
OCTOBER 25, 2023
The Advanced Clean Trucks standard modeled in the report would require manufacturers, beginning in 2027, to increase their zero-emission truck sales to between 30-50 percent by 2030 and 40-75 percent by 2035. The report was prepared by ERM and commissioned by NRDC and the Union of Concerned Scientists. These gains include $1.3
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.
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. The overall combination of reductions in particulate matter, nitrogen oxides and other air pollutants are expected to deliver $13 billion in annual health benefits. Far from it.
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