2027 Greenhouse Nitrogen Oxides 
Union of Concerned Scientists
AUGUST 5, 2024
The call for authors for the Cities report will take place between August 9-September 20 of this year with expected final report review by the Panel in March 2027. The IPCC will issue a call for authors in the upcoming weeks with expected publication of the report in the second half of 2027.
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. billion cumulatively through 2050.
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Union of Concerned Scientists
SEPTEMBER 26, 2022
Beginning in 2027, the ACF would require all new medium- and heavy-duty vehicles purchased by public agencies to be emissions-free, including large work trucks and vans, street sweepers, vacuum trucks, and other similar vehicles. There are more than 1.8 pollution from vehicles. Public Agency Fleets.
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
OCTOBER 13, 2022
The Advanced Clean Fleets (ACF) rule has the potential to significantly reduce climate-warming greenhouse gas (GHG) emissions as well as harmful air pollutants like fine particulates (PM2.5) and nitrogen oxides (NOx) from the numerous commercial and government fleets of MHD vehicles in the state.
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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