EPA Greenlights San Joaquin Valley's Ozone Maintenance Plan
Published Date: 9/25/2025
Rule
Summary
The EPA just gave a big thumbs-up to California’s plan to keep the San Joaquin Valley’s air clean and healthy. This means the area officially meets old ozone pollution standards, so some strict rules are being lifted. Residents and businesses can expect smoother air quality rules starting now, with no extra costs or delays.
Analyzed Economic Effects
1 provisions identified: 1 benefits, 0 costs, 0 mixed.
San Joaquin Valley redesignated to attainment
You live or run a business in the San Joaquin Valley: the EPA approved California’s "2023 Maintenance Plan and Redesignation Request" and found the area meets the revoked 1979 1-hour ozone standard. As a result, the EPA is terminating all anti-backsliding obligations tied to that revoked 1-hour ozone standard for the San Joaquin Valley area.
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