Day 30
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
- National Emission Standards for Hazardous Air Pollutants for Source Categories: General Provisions; and Requirements for Control Technology Determinations for Major Sources in Accordance With Clean Air Act Sections, Sections 112(g) and 112(j) [HTML] or [PDF]
- Approval and Promulgation of Implementation Plans, Kentucky: Approval of Revisions to Maintenance Plan for Northern Kentucky
- List of Hazardous Air Pollutants, Petition Process, Lesser Quantity Designations, Source Category List [HTML] or [PDF]
AIR TEXT Files - [ZIP 77kb] - Approval and Promulgation of Implementation Plans, Kentucky: Approval of Revisions to Maintenance Plan for Northern Kentucky
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