Green Book Nonattainment Areas
1-Hour Ozone (1979) Nonattainment Area Summary with History - NAAQS RevokedAs of June 15, 2005
* Please Note: Changes can occur that adjust the original baseline counts, e.g., classification changes, area boundary changes, new areas designated nonattainment. See the report listing these adjustments to the original 1991 nonattainment area baseline.
78 FR 58189, effective 10/23/2013, corrected a boundary for the land of the Morongo Band of Mission Indians, located near Banning Pass in Riverside County, identifying it as a separately designated Severe-17 area for the 1-Hour Ozone standard, independent of the Los Angeles-South Coast Air Basin Area.
County subtotals and grand totals may not equal sum of parts. Part counties are only counted one time within groups.
"Section 185A" was previously called "Transitional". The Ohio portion of the Youngstown-Warren-Sharon OH-PA area is a maintenance area, while the Pennsylvania portion remains nonattainment. The redesignated area column of this report does not include the partially redesignated areas.Go Top