# Air Plan Approval; California; San Joaquin Valley Unified Air Pollution Control District
> **Rule** · Final rule. · Published 2021-12-27 · Effective 2022-01-26 · 86 FR 73106
## Document
- **Document number:** 2021-27798
- **Category:** air-emissions
- **Federal Register citation:** 86 FR 73106
- **CFR reference:** 40 CFR 52
- **Publication date:** 2021-12-27
- **Effective date:** 2022-01-26
- **State:** CA
- **EPA docket:** EPA-R09-OAR-2020-0079
## Abstract

The Environmental Protection Agency (EPA) is taking final action to partially approve a revision to the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD) portion of the California State Implementation Plan (SIP). This revision concerns emissions of oxides of nitrogen (NO<INF>X</INF>) and fine particulate matter (PM<INF>2.5</INF>) from off-road diesel agricultural vehicles and equipment. We are approving portions of a local measure to reduce emissions from these sources under the Clean Air Act (CAA or the Act) and deferring action on the remaining portions of this measure.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2021/12/27/2021-27798/air-plan-approval-california-san-joaquin-valley-unified-air-pollution-control-district)
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