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Day 28
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
- Approval and Promulgation of Implementation Plans; Ohio
- Adequacy Status of the Spokane, WA Carbon Monoxide Maintenance Plan and Redesignation Request for Transportation Conformity Purposes
- Approval and Promulgation of Maintenance Plan Revisions; Michigan
- Approval and Promulgation of Maintenance Plan Revisions; Michigan
AIR TEXT Files - [ZIP 22kb] - Adequacy Status of the Spokane, WA Carbon Monoxide Maintenance Plan and Redesignation Request for Transportation Conformity Purposes