2027 Air Pollution Greenhouse 
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.
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.
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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.,
PA Environment Daily
NOVEMBER 21, 2024
XTO) [ExxonMobil] and Hilcorp Energy Company (Hilcorp) , agreed to resolve alleged Clean Air Act and Pennsylvania Air Pollution Control Act violations involving their oil and gas production operations in Pennsylvania. In separate agreements, XTO Energy Inc. Uhlmann for EPA’s Office of Enforcement and Compliance Assurance.
E2 Law Blog
SEPTEMBER 19, 2023
Environmental Protection Agency (EPA) announced its final, revised National Enforcement and Compliance Initiatives (NECIs) for fiscal years 2024-2027, seven months after soliciting public comment on its proposals. See Public Comment on EPA’s National Enforcement and Compliance Initiatives for Fiscal Years 2024–2027 , 88 Fed.
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. EPA has proposed three different early credit programs.
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.
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