Air and climate
Air permits, emissions limits, greenhouse gas programs such as RGGI, and building performance rules. What changed, the rules that apply and the dates ahead for projects in New Jersey, New York, Connecticut and Pennsylvania.
Latest briefings
- HighPennsylvania
Federal: Philadelphia, Pittsburgh and central Pennsylvania counties may face stricter air permits under soot standard
EPA has signaled which areas may be found to violate the 2024 fine-particle standard, including four South Jersey counties. Comments close November 5; final designations are due by February 6, 2027.
ProposedAir & climate - MediumPennsylvania
Federal rule limits challenges to construction air permits through operating-permit reviews, effective October 26
A final federal rule says preconstruction air permits issued with public comment and court review define a plant's requirements in its operating permit, narrowing grounds for federal objections and citizen petitions.
FinalAir & climate - MediumPennsylvania
Federal rule drops carbon capture mandate for new gas plants and repeals limits on existing units
EPA's September 17 rule, effective November 16, removes carbon capture requirements for new baseload gas turbines and existing coal and gas units, while a broader repeal proposal takes comments until November 2.
Rules 6
- Federal · Clean Air Act § 107(d), 42 U.S.C. 7407(d); 91 Fed. Reg. 63516 (Oct. 6, 2026); Docket EPA-HQ-OAR-2024-0078Area designations under the 2024 annual fine-particle (PM2.5) standard
- Federal · 40 CFR 61.145Asbestos notice before demolition and renovation
- Federal · 40 CFR Part 745, Subpart ELead-safe renovation of pre-1978 housing and child-occupied buildings
- Pennsylvania · 25 Pa. Code Ch. 127; DEP GP-1, GP-9, GP-11, GP-16Air general permits for generators and boilers
- Pennsylvania · 35 P.S. § 4001 et seq.; 25 Pa. Code Ch. 127Air plan approvals and operating permits
- Pennsylvania · Phila. Code Title 9; OOS BEPP regulationsPhiladelphia building energy benchmarking and tune-ups
Coming up
- Federal · Report duePM2.5 designations: states' additional information requested
- Federal · Comments closePM2.5 designations: comments close
- Federal · Hearing or decisionPM2.5 designations: EPA's court-ordered deadline for final designations