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Proposed Revisions of the Nonattainment Designation for the 2008 and 2015 Ozone Standards and Clean Data Determinations for the 2008 and 2015 Ozone Standards: Cecil County, MD and New Castle County, DE; Extension of Comment Period | Sporos

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Proposed Rule

Proposed Revisions of the Nonattainment Designation for the 2008 and 2015 Ozone Standards and Clean Data Determinations for the 2008 and 2015 Ozone Standards: Cecil County, MD and New Castle County, DE; Extension of Comment Period

The Environmental Protection Agency (EPA) is extending the comment period for a proposed rule that published January 2, 2026. The current comment period for the proposed rule was scheduled to close on February 2, 2026. The EPA is extending the comment period for the proposed action to February 9, 2026.

Published

Jan 23, 2026

Effective

Jan 2, 2026

Comments Close

Feb 9, 2026

Citation

91 FR 2894

Agencies

2026-01319Proposed Revisions of the Nonattainment Designation for the 2008 and 2015 Ozone Standards and Clean Data Determinations for the 2008 and 2015 Ozone Standards: Cecil County, MD and New Castle County, DE; Extension of Comment Period

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Agencies (1)

EPA — Environmental Protection Agency

Topics

Air pollution control Environmental protection Incorporation by reference Intergovernmental relations Nitrogen dioxide Ozone Volatile organic compounds

Docket IDs

EPA-R03-OAR-2025-1872

FRL-12994-03-R3

CFR References

40 CFR 52

40 CFR 81

Document Details

Type: Proposed Rule
Action: Proposed rule; extension of comment period.
Document #: 2026-01319
Citation: 91 FR 2894
Publication Date: Jan 23, 2026
Effective Date: Jan 2, 2026
Dates: The comment period for the proposed rule published on January 2, 2026 (91 FR 98) was originally scheduled to close on February 2, 2026, but the comment period is being extended by 7 days. Comments must be received on or before February 9, 2026.
Federal Register Pages: Vol. 91, pp. 2894–2895
Page Views: 164

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