Previous Nonattainment Areas No Longer Subject to the 1-hour Standard
As of June 15, 2005
|Classification||No. Areas||No. Counties||2000
County subtotals and grand totals may not equal sum of parts. Part counties are only counted one time within groupings.
"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.