Finding of Failure To Attain the 2006 24-Hour PM2.5 Standards; California; San Joaquin Valley; Error Correction
Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register June 11, 2026. Document 2026-11731. Updated Nov. 10, 2026.
- What it does
In response to a court decision, the Environmental Protection Agency (EPA) is correcting our July 22, 2020 final action erroneously granting a Clean Air Act (CAA) section 188(e) attainment date extension for the 2006 24-hour fine particulate matter (PM<INF>2.5</INF>) national ambient air quality standards (NAAQS or "standards") in the San Joaquin Valley from December 31, 2019, to December 31, 2024, and is now denying California's extension request. The EPA is also finalizing our determination that the San Joaquin Valley nonattainment area failed to attain the 2006 24-hour PM<INF>2.5</INF> NAAQS by the December 31, 2019 unextended attainment date. This determination is based on monitored air quality data from 2017 through 2019. As a result of this final determination, the State of California will be required to submit a revision to the California state implementation plan (SIP) that, among other elements, provides for expeditious attainment of the 2006 24-hour PM<INF>2.5</INF> NAAQS and for a five percent annual reduction in emissions of direct PM<INF>2.5</INF> or a PM<INF>2.5</INF> plan precursor pollutant.
The Environmental Protection Agency's summary, as published in the Federal Register.
- What changed in the regulation
1 part of Title 40 of the Code of Federal Regulations:
Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).
- Compared with
The Environmental Protection Agency has published 243 final rules in 2026 so far, compared with 263 in all of 2025.
Counted by the Tribune from Federal Register records since Jan. 1, 2025.
- What happens next and when
This rule is effective July 13, 2026.
The agency's dates, word for word.
The record as published
| Document number | 2026-11731 |
|---|---|
| Action | Final rule. |
| Agencies | Environmental Protection Agency |
| Published | June 11, 2026 |
| Effective date | July 13, 2026 |
| Docket | EPA-R09-OAR-2026-1257 |
Source: the Federal Register (public domain). The document in the Federal Register