Green Book Nonattainment Areas
1-Hour Ozone (1979) Section 185A Nonattainment Areas - NAAQS Revoked
As of June 15, 2005
|Imperial Co, CA|
|Yuba City, CA|
Classified and Incomplete Data areas not included. Prior Designation retained by operation of Law, but without measured violations. Section 185A areas had 3 complete years of data. Incomplete data areas had no data or less than 3 complete years of data at time of classification. "Section 185A" was previously called "Transitional". The former 1-Hour Ozone designations and classifications as of June 15, 2004, are being retained in subpart C of Part 81 for purposes of the anti backsliding provisions of 40 CFR 51.905. 40 CFR 51.905(c) references subpart C of part 81 for the areas affected by the anti-backsliding regulation.