The Environmental Protection Agency (EPA) Administrator signed an order dated June 9, 2026, denying a petition dated September 9, 2024, from RISE St. James, Healthy Gulf, Louisiana Bucket Brigade, Sierra Club, and Earthjustice (Petitioners). The petition requested that the EPA object to a Clean Air Act (CAA) title V operating permit issued by the Louisiana Department of Environmental Quality (LDEQ) to Mitsubishi Chemical America, Inc. for its MCA Geismar Site located in Geismar, Ascension Parish, Louisiana.
Source
https://www.federalregister.gov/documents/2026/07/16/2026-14257/clean-air-act-operating-permit-program-order-on-petition-for-objection-to-state-operating-permit-forCanonical document at the regulator. Always cite this URL — not the Vantage detail page — in compliance evidence.