Select Page


2015 Ozone Standard Designations

Published: May 3, 2018

On April 30, 2018, the U.S. Environmental Protection Agency (EPA) finalized nonattainment area designations for the 2015 Ozone National Ambient Air Quality Standard (NAAQS). These final designations will become effective 60 days after the notice is published in the Federal Register, which should occur within the next couple of weeks.

Notice: Additional Air Quality Designations for the 2015 Ozone National Ambient Air Quality Standards (PDF)(114 pp, 2 MB)
View
Fact Sheet: Additional Air Quality Designations for the 2015 Ozone National Ambient Air Quality Standards (PDF)(8 pp, 191 K)
View
Summary Table: Additional Air Quality Designations for the 2015 Ozone National Ambient Air Quality Standards (PDF)(4 pp, 108 K)
View
Map: Nonattainment Area Designations for the 2015 Ozone Standards (April 30, 2018) (PDF)(1 pg, 475 K)
View
Response to Comments: Additional Air Quality Designations for the 2015 Ozone National Ambient Air Quality Standards (PDF)(82 pp, 888 K)
View