1997 Ozone National Ambient Air Quality Standards (NAAQS) Nonattainment Actions Fact Sheets

This page contains the fact sheets for two separate regulations dealing with the nonattainment actions of the 1997 ozone national ambient air quality standards (NAAQS).

• Fact Sheet: Final Rule to Implement the 1997 8-Hour Ozone National Ambient Air Quality Standard: Classification of Areas That Were Initially Classified as Subpart 1 (pdf) (89.5 KB, April 27, 2012)
• Proposed Rule: Reasonable Further Progress Requirements for the 1997 8-hour Ozone National Ambient Air Quality Standard (NAAQS) Fact Sheet (pdf) (21.48 KB, December 15, 2010)