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Day 18
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
- Approval and Promulgation of State Implementation Plans; California--South Coast [HTML] or [PDF]
- Approval and Promulgation of State Implementation Plans and Designation of Areas for Air Quality Planning Purposes; California-- Coachella Valley [HTML] or [PDF]
AIR TEXT Files - [ZIP 11kb] - Approval and Promulgation of State Implementation Plans and Designation of Areas for Air Quality Planning Purposes; California-- Coachella Valley [HTML] or [PDF]