Regulatory Tracker Regional Haze Rule Through two state plan approvals, EPA finalized a new policy that eases all states’ Regional Haze planning obligations. Environmental groups are challenging the approvals. July 22, 2026
Regulatory Tracker New Source Review EPA establishes the baseline requirements for new source review (NSR) permits, which are then issued by state and local air pollution agencies. In 2025 and 2026, EPA made changes to the NSR program easing permitting requirements. July 18, 2026
Regulatory Tracker National Ambient Air Quality Standards (NAAQS) for Particulate Matter (PM) The CAA requires EPA to review and set primary and secondary standards for PM NAAQS every 5 years. The Biden EPA strengthened the standard in March 2024. July 17, 2026
Environmental Justice Tracker EPA Released Guidance Exempting “Islanded” Power Generation from Acid Rain Program July 16, 2026
Regulatory Tracker Clean Car Rules — Corporate Average Fuel Economy Standards/Greenhouse Gas Standards The EPA rescinded the Endangerment Finding and all GHG vehicle standards. July 9, 2026
Environmental Justice Tracker EPA Issued Draft Guidance on Reducing Risk from PFOA and PFOS in Biosolids July 6, 2026
Regulatory Tracker NEPA — Environmental Protection Agency EPA issued a proposed rule revising its NEPA implementing regulations. June 27, 2026
Environmental Justice Tracker Several Federal Agencies Eliminated Their Disparate Impact Regulations June 17, 2026
