2026-22588·ENVIRONMENTAL PROTECTION AGENCY

Air Quality Implementation Plans; California; San Joaquin Valley; 2015 8-Hour Ozone Nonattainment Area Requirements; and California Consumer Products Regulations

Proposed RuleComment Period OpenComments open

Published: Nov 5, 2026
Comments close: Dec 7, 2026
Citation: 91 FR 69910
Docket: EPA-R09-OAR-2026-8252, FRL-13635-01-R9

Proposed rule.

Summary

The Environmental Protection Agency (EPA) is proposing to approve a set of revisions that California has submitted to its State Implementation Plan (SIP) for the San Joaquin Valley, an area that has not met the 2015 eight‑hour ozone standard. The changes provide updated emissions inventories, control measures, and demonstration that the region can reach the required ozone level of 70 parts per billion. They also include new budgets for motor‑vehicle emissions and enhanced air‑monitoring plans, all intended to show that the valley is on a realistic path to cleaner air. The proposal also covers two California Air Resources Board (CARB) updates to the state’s Consumer Products Regulations and to “Method 310,” which set limits and testing procedures for volatile organic compounds (VOCs) released from products such as antiperspirants, deodorants, consumer goods, and aerosol coatings. By approving these updates, the EPA would allow the state to count the emissions reductions from those products toward meeting the ozone requirements. The EPA published the proposal on November 5, 2026, and is seeking public comments until December 7, 2026. After the comment period closes, the agency will review the feedback, finalize the rule, and formally incorporate the California revisions into the federal SIP. Once finalized, the approved measures and budgets will become enforceable components of the Clean Air Act program for the San Joaquin Valley and for the statewide consumer‑product VOC controls.

AI-generated summary — verify against the Federal Register text.

Official abstract

The U.S. Environmental Protection Agency (EPA) proposes to approve State implementation plan (SIP) revisions submitted by the State of California to meet Clean Air Act (CAA or "Act") requirements for the 2015 8-hour ozone national ambient air quality standards (NAAQS or "standards") in the San Joaquin Valley ozone nonattainment area ("San Joaquin Valley" or "SJV"). In this document, the EPA refers to these submissions collectively as the "SJV 70 ppb Ozone SIP." The EPA proposes to approve the SJV 70 parts per billion (ppb) Ozone SIP as meeting the applicable ozone nonattainment area requirements for emissions inventories, reasonably available control measures, attainment demonstration, rate of progress and reasonable further progress, motor vehicle emissions budgets, and enhanced monitoring. The EPA is also initiating the adequacy process for the budgets included in this SIP submission through this proposed rule. The EPA also proposes to approve two SIP revisions amending the SIP to incorporate changes reflecting updates to California Air Resources Board (CARB) Consumer Products Regulations and Method 310, which apply statewide and upon which the SJV 70 ppb Ozone SIP relies. These regulations concern emissions of volatile organic compounds (VOC) from antiperspirants, deodorants, consumer products, and aerosol coating products, and Method 310 is used to determine the VOC and reactive organic compounds content of these products. The EPA proposes to approve these regulations for purposes of the State's SIP under the CAA.