Data / Federal rules / 2026-09054

Air Plan Approval; Missouri; Attainment Plan for the New Madrid Nonattainment Area for the 2010 1-Hour Sulfur Dioxide National Ambient Air Quality Standard

The Environmental Protection Agency published this proposed rule in the Federal Register on May 7, 2026. Comments closed on June 8, 2026.

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What the agency says

The Environmental Protection Agency (EPA) is proposing to approve the State Implementation Plan (SIP) revision, submitted by the State of Missouri, on May 3, 2023. This revision pertains to the attainment plan for the New Madrid nonattainment area for the 2010 1- hour sulfur dioxide (SO<INF>2</INF>) primary National Ambient Air Quality Standard (NAAQS). This plan (herein called an "attainment plan") includes the State's attainment demonstration and other elements required under Clean Air Act (CAA). In addition to an attainment demonstration, the plan addresses emission limitations necessary to provide for attainment, base-year and projection-year emission inventories, reasonably available control measures and reasonably available control technology (RACM/RACT), nonattainment new source review (NNSR), the requirements for meeting reasonable further progress (RFP) toward attainment of the NAAQS, and contingency measures. The EPA is proposing to approve Missouri's submission as meeting these relevant CAA requirements. This action is being taken pursuant to the CAA.

Key facts

Document number: 2026-09054
Type: Proposed rule
Action: Proposed rule
Agency: Environmental Protection Agency
Published: May 7, 2026
Comments due: June 8, 2026
Dates: Comments must be received on or before June 8, 2026.
Docket: EPA-R07-OAR-2026-2938; FRL-13334-01-R7
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Reporting and recordkeeping requirements; Sulfur oxides
Pages: 15

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Rules on air pollution control · Rules on environmental protection · Rules on incorporation by reference · Published in May 2026

Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.