2027 Air Pollution Greenhouse Technology 
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) A lower threshold would bring more reductions in air pollution sooner for the communities who need it most.
Union of Concerned Scientists
DECEMBER 15, 2022
I recently wrote a (very wonky) paper about how giving credits to technology deployment in advance of the beginning of the rule in 2027 could pose a serious problem to the long-term effectiveness on the rule at driving the cleanest technology to market, but it’s worth summarizing here. Limits on mal-maintenance/tampering.
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Union of Concerned Scientists
SEPTEMBER 26, 2022
pollution from vehicles. 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 Public Agency Fleets.
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
MARCH 26, 2024
They will go into effect in model year 2027 and steadily increase in stringency through model year 2032. Here’s what you need to know: Climate Transportation is the largest source of climate emissions in the US (29 percent) and passenger cars and trucks account for the majority of this pollution. One thing to keep in mind. Far from it.
Law Columbia
AUGUST 22, 2022
cities move toward their greenhouse gas reduction goals via a cleaner national electric grid, increased vehicle and building electrification, and new distributed renewable energy resources. Clean Air Act appropriating $2.25 economy and to significantly contribute to its greenhouse gas reduction efforts.
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.). However, the agency considered a range of alternatives.
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