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Day 17
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
- Regulatory Impact Analysis for the Review of the Particulate Matter National Ambient Air Quality Standards
- Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; Maine; Redesignation of the Portland, ME and the Hancock, Knox, Lincoln and Waldo Counties, Maine 8-Hour Ozone Nonattainment Areas to Attainment for Ozone
- Revisions to the Arizona State Implementation Plan, Pinal County Air Quality Control District
- National Ambient Air Quality Standards for Particulate Matter [HTML 730kb] or [PDF 1,478kb]
- Revisions to Ambient Air Monitoring Regulations [HTML 721kb] or [PDF 1,896kb]
AIR TEXT Files - [ZIP 418kb] - Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; Maine; Redesignation of the Portland, ME and the Hancock, Knox, Lincoln and Waldo Counties, Maine 8-Hour Ozone Nonattainment Areas to Attainment for Ozone