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Day 13
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 Industrial/Commercial/Institutional Boilers and Process Heaters [HTML] or [PDF]
- Approval and Promulgation of Air Quality Implementation Plans; Designation of Areas for Air Quality Planning Purposes; Pennsylvania; Redesignation of the Allegheny County Carbon Monoxide Nonattainment Area and Approval of Miscellaneous Revisions
- Outer Continental Shelf Air Regulations; Consistency Update for California
AIR TEXT Files - [ZIP 141kb] - Approval and Promulgation of Air Quality Implementation Plans; Designation of Areas for Air Quality Planning Purposes; Pennsylvania; Redesignation of the Allegheny County Carbon Monoxide Nonattainment Area and Approval of Miscellaneous Revisions