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Energy & environment · 23/03/2026

Approval of Clean Air Plans; San Joaquin Valley, California; Contingency Measures for 1997 Ozone Standards

The Environmental Protection Agency (EPA) is approving a state implementation plan from California, meeting the requirements for the 1997 ozone national ambient air quality standards in the San Joaquin Valley, California.

Original source language: Federal Register — Environmental Protection AgencyOpen original release →

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