PM-2.5 (1997) Attainment Date Extensions

Data is current as of March 31, 2024
Ordered by Classification

Click on the 'FR' link to view the Federal Register Notice

---

SERIOUS
San Joaquin Valley, CA
Extension from 4/5/2010 to 4/5/2015.
Proposed Approval	07/13/2011	76 FR 41338
Final Approval	11/09/2011	76 FR 69896	Effective: 01/09/2012
Extension from 4/5/2015 to 12/31/2018 for the 1997 24-hour standard, 12/31/2020 for the annual standard.
Proposed Approval	02/09/2016	81 FR 6936
Final Disapproval	10/06/2016	81 FR 69396	Effective: 11/07/2016
MODERATE
Los Angeles-South Coast Air Basin, CA
Extension from 4/5/2010 to 4/5/2015.
Proposed Approval	07/14/2011	76 FR 41562
Final Approval	11/09/2011	76 FR 69928	Effective: 01/09/2012

Go Top