Regulatory Tracker Clean Car Rules — Corporate Average Fuel Economy Standards/Greenhouse Gas Standards The Trump EPA issued a proposal to rescind the Endangerment Finding and the GHG standards for light, medium, and heavy-duty vehicles. October 27, 2025
Federal Environmental Justice Tracker Trump Allowed Copper Smelting Facility to Delay Compliance with Hazardous Air Pollution Limits October 24, 2025
Regulatory Tracker Ethylene Oxide (EtO) Emissions Standards for Commercial Sterilizers The Biden EPA strengthened regulation of ethylene oxide (EtO) emissions from commercial sterilization facilities, which environmental groups and industry petitioners challenged in the D.C. Circuit. The Trump EPA plans to roll back the rule and invited industry to apply for exemptions. October 22, 2025
Federal Environmental Justice Tracker EPA Raised Some Screening Levels for Lead in Soil October 20, 2025
Regulatory Tracker Hydrofluorocarbons and the Kigali Amendment to the Montreal Protocol In 2022, the US Senate ratified the Kigali Amendment, which committed the US to reducing the use of HFCs. EPA has issued multiple rules to implement the mandate. October 17, 2025
Regulatory Tracker Mercury and Air Toxics Standards In June 2025, the EPA proposed a rule to rescind the 2024 mercury and air toxics standards (MATS) for power plants. Trump has exempted 74 electric generating units from the 2024 MATS. October 16, 2025
Federal Environmental Justice Tracker EPA Sought Comment on Reconsideration of Carbon Tetrachloride (CTC) Rule October 9, 2025
Federal Environmental Justice Tracker EPA Proposed Rollback of Greenhouse Gas Reporting Requirements October 6, 2025
Federal Environmental Justice Tracker EPA Sought Comment on Possible Changes to Regional Haze Rule October 2, 2025
