Air Plan Approval; Missouri; Construction Permits Required

Document 2026-07884 is a Final Rule published by the Environmental Protection Agency in the Federal Register on April 23, 2026, with an effective date of May 26, 2026. The Environmental Protection Agency (EPA) is taking final action to approve revisions to the Missouri State Implementation Plan (SIP) received on March 19, 2025, that contain updates to the construction permit requirement regulations for stationary and portable air sources in Missouri that help ensure ambient air quality standards are met. The revisions to this rule include updating the fees for facilities applying for and receiving construction permits for air pollution sources; removing a subsection from the state rule that was never approved in the SIP; and making administrative wording changes. The EPA is correcting the state effective date in table C from the original proposal. These revisions do not interfere with the State's ability to attain or maintain the National Ambient Air Quality Standards (NAAQS), reasonable further progress (RFP) or other Clean Air Act (CAA) requirements. The EPA's final approval of this rule revision is being done in accordance with the requirements of the CAA. View the original at https://www.federalregister.gov/documents/2026/04/23/2026-07884/air-plan-approval-missouri-construction-permits-required.

No. Document 2026-07884 is not classified as economically significant under Executive Order 12866. Economically significant rules require OIRA review and are estimated to have impacts of $100 million or more per year.