Partial Designations for the 2015 Ozone Standards

EPA is taking the next step in the Clean Air Act process to implement the national air quality standards for ozone set in 2015.  The Agency finds that most areas in the country meet the standards and is designating these areas “attainment/unclassifiable.”

Notice:  Air Quality Designations for the 2015 Ozone National Ambient Air Quality Standards (pdf) (409 KB)

See other area designations for the 2015 Ozone Standards

• Fact Sheet: Round 1 Area Designations for the 2015 Ozone Standards (pdf) (465.05 KB)
• Implementing the 2015 Ozone Standards - Designated State Areas (pdf) (1.08 MB)
• Implementing the 2015 Ozone Standards - Summary of Tribal Area Status (pdf) (322.46 KB)