Data / Federal rules / 2025-13335
Air Plan Approval; Guam; Base Year Emissions Inventory for the 2010 1-Hour Sulfur Dioxide National Ambient Air Quality Standard for the Piti-Cabras Nonattainment Area
The Environmental Protection Agency published this proposed rule in the Federal Register on July 16, 2025. Comments closed on August 15, 2025.
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What the agency says
The Environmental Protection Agency (EPA) is proposing to approve a revision to Guam's State Implementation Plan (SIP) under section 110(k)(3) of the Clean Air Act (CAA or "the Act"). This revision concerns the base year emissions inventory for the Piti- Cabras, Guam sulfur dioxide (SO<INF>2</INF>) nonattainment area ("Piti-Cabras area" or NAA) for the 2010 1-hour SO<INF>2</INF> National Ambient Air Quality Standard (NAAQS, "standard," or "2010 SO<INF>2</INF> NAAQS"). We are taking comments on a proposed approval of this revision and are simultaneously publishing a final action approving this revision in a direct final rule.
Key facts
- Document number
- 2025-13335
- Type
- Proposed rule
- Action
- Proposed rule
- Agency
- Environmental Protection Agency
- Published
- July 16, 2025
- Comments due
- August 15, 2025
- Dates
- Comments must be received on or before August 15, 2025.
- Docket
- EPA-R09-OAR-2025-0268; FRL-12868-01-R9
- Code of Federal Regulations
- 40 CFR 52
- Pages
- 1
Other documents from the Environmental Protection Agency
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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.