Data / Federal rules / 2024-29223
Reconsideration of the National Ambient Air Quality Standards for Particulate Matter; Correction
The Environmental Protection Agency published this final rule in the Federal Register on December 19, 2024. It took effect on December 19, 2024.
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What the agency says
The Environmental Protection Agency (EPA) is correcting a final rule published in the Federal Register on March 6, 2024, that became effective on May 6, 2024. The final rule revised the primary annual PM<INF>2.5</INF> standard by lowering the level from 12.0 [micro]g/m\3\ to 9.0 [micro]g/m\3\, retained the current primary 24- hour PM<INF>2.5</INF> standard and the primary 24-hour PM<INF>10</INF> standard, retained the secondary 24-hour PM<INF>2.5</INF> standard, secondary annual PM<INF>2.5</INF> standard, and secondary 24-hour PM<INF>10</INF> standard, and finalized revisions to the Air Quality Index (AQI) and monitoring requirements for the national ambient air quality standards for particulate matter (PM NAAQS). After publication, the EPA became aware of an error in the preamble text regarding the due date for infrastructure State implementation plan (infrastructure SIP) submissions for the 2024 p.m. NAAQS. With this action, the EPA is clarifying the due date for infrastructure SIP submissions for the 2024 p.m. NAAQS. The EPA is also correcting inadvertent errors in the PM<INF>2.5</INF> monitoring regulatory text. These corrections do not include any substantive changes to the final rule.
Key facts
- Document number
- 2024-29223
- Type
- Final rule
- Action
- Final rule; correction and correcting amendment
- Agency
- Environmental Protection Agency
- Published
- December 19, 2024
- Takes effect
- December 19, 2024
- Dates
- This correction is effective on December 19, 2024.
- Docket
- EPA-HQ-OAR-2015-0072; FRL-8635.1-02-OAR
- Regulation ID (RIN)
- 2060-AW48
- Code of Federal Regulations
- 40 CFR 50; 40 CFR 58
- Topics
- Administrative practice and procedure; Air pollution control; Environmental protection; Intergovernmental relations; Particulate matter; Reporting and recordkeeping requirements
- Pages
- 6
Other documents from the Environmental Protection Agency
Everything from the Environmental Protection Agency · Rules on administrative practice and procedure · Rules on air pollution control · Rules on environmental protection · Published in December 2024
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