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Regulation & law · 21/08/2025

EPA Finalizes Determination of Attainment for Sacramento Metro Area

The Environmental Protection Agency (EPA) has finalized its determination that the Sacramento Metro area in California met the 2008 8-hour ozone national ambient air quality standards (NAAQS) by its December 31, 2024 attainment date, based on quality-assured monitoring data from 2022 to 2024.

Original source language: Federal Register — All DocumentsOpen original release →

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