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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 | Sporos

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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 (EPA) is taking direct final action 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").

Published

Jul 16, 2025

Effective

Oct 14, 2025

Comments Close

Aug 15, 2025

Citation

90 FR 31877

Agencies

2025-13328Air 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

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Agencies (1)

EPA — Environmental Protection Agency

Topics

Air pollution control Environmental protection Incorporation by reference Intergovernmental relations Sulfur oxides

Docket IDs

EPA-R09-OAR-2025-0268

FRL-12868-02-R9

CFR References

40 CFR 52

Document Details

Type: Final Rule
Action: Direct final rule.
Document #: 2025-13328
Citation: 90 FR 31877
Publication Date: Jul 16, 2025
Effective Date: Oct 14, 2025
Dates: This rule is effective October 14, 2025 without further notice, unless the EPA receives adverse comments by August 15, 2025. If we receive such comments, we will publish a timely withdrawal in the Federal Register to notify the public that this direct final rule will not take effect.
Federal Register Pages: Vol. 90, pp. 31877–31881
Page Views: 169

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