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PM-2.5 (1997) Attainment Date Extensions
PM-2.5 (1997) Attainment Date Extensions
Data is current as of January 31, 2025Ordered 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 |
Proposed Approval | 07/08/2024 | 89 FR 55901 | |
Final Approval | 11/19/2024 | 89 FR 91263 | Effective: 12/19/2024 |
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 |
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