Data / Federal rules / 2024-15826
Air Plan Disapproval; Missouri; Interstate Transport of Air Pollution for the 2015 8-Hour Ozone National Ambient Air Quality Standards
The Environmental Protection Agency published this proposed rule in the Federal Register on August 6, 2024. Comments closed on September 20, 2024.
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What the agency says
Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA or the Agency) is proposing to disapprove a State Implementation Plan (SIP) revision submitted by Missouri (the State) on November 1, 2022 regarding interstate transport for the 2015 8-hour ozone national ambient air quality standards (NAAQS). The "good neighbor" or "interstate transport" provision requires that each State's SIP contain adequate provisions to prohibit emissions from within the State from significantly contributing to nonattainment or interfering with maintenance of the NAAQS in other States. This requirement is part of the broader set of "infrastructure" requirements designed to ensure that the structural components of each State's air quality management program are adequate to meet the State's responsibilities under the CAA. Missouri previously submitted a SIP revision regarding ozone transport for the 2015 8-hour ozone NAAQS (2015 ozone NAAQS) on June 10, 2019, which the EPA previously disapproved. Missouri submitted a second SIP submission, reanalyzing its good neighbor obligations and making revisions to its SIP, on November 1, 2022. In this document, the EPA proposes to disapprove the November 1, 2022, submission as inadequate to address Missouri's obligations. This disapproval, if finalized, will establish a 2-year deadline for the EPA to promulgate a Federal Implementation Plan (FIP) to address the relevant interstate transport requirements, unless the EPA approves a subsequent SIP submission that meets these requirements. Disapproval does not start a mandatory sanctions clock.
Key facts
- Document number
- 2024-15826
- Type
- Proposed rule
- Action
- Proposed rule
- Agency
- Environmental Protection Agency
- Published
- August 6, 2024
- Comments due
- September 20, 2024
- Dates
- Written comments must be received on or before September 20, 2024. Virtual public hearing: The EPA will hold a virtual public hearing on August 21, 2024. The last day to pre-register to speak at the hearing will be August 19, 2024. On August 20, 2024, the EPA will post a general agenda for the hearing that will list pre- registered speakers in approximate order at https://www.epa.gov/mo/air- missouri. If you require the services of a translator or a special accommodation such as audio description/closed captioning, please pre- register for the hearing and describe your needs by August 13, 2024
- Docket
- EPA-HQ-OAR-2021-0663; EPA-R07-OAR-2021-0851; FRL-11688-01-R7
- Code of Federal Regulations
- 40 CFR 52
- Topics
- Air pollution control; Environmental protection; Incorporation by reference; Ozone
- Pages
- 29
Other documents from the Environmental Protection Agency
Everything from the Environmental Protection Agency · Rules on air pollution control · Rules on environmental protection · Rules on incorporation by reference · Published in August 2024
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.