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Regulation & law · 11/06/2026

EPA Proposes Extension of Attainment Date for South Coast Air Basin

The Environmental Protection Agency (EPA) is proposing to extend the attainment date for the Los Angeles-South Coast Air Basin's nonattainment area for fine particulate matter (PM 2.5) standards from December 31, 2025, to December 31, 2030.

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

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