![[logo] US EPA](http://www.epa.gov/epafiles/images/logo_epaseal.gif){kind=logo}
Previous Nonattainment Areas No Longer Subject to the 1-hour Standard
As of June 15, 2005
| Classification | No. Areas | No. Counties | 2000 Pop. (1000s) |
|---|---|---|---|
| Extreme | 2 | 12 | 17,784 |
| Severe (2007) | 5 | 51 | 35,419 |
| Severe (2005) | 6 | 48 | 16,735 |
| Serious | 8 | 38 | 16,125 |
| Moderate | 5 | 12 | 1,737 |
| Marginal | 18 | 38 | 6,884 |
| Other | 1 | 9 | 6,542 |
| SUBTOTAL: | 45 | 199 | 101,226 |
| Section 185A | 3 | 4 | 459 |
| Incomplete Data | 14 | 15 | 1,260 |
| SUBTOTAL: | 17 | 19 | 1,719 |
| GRAND TOTAL: | 62 | 217 | 102,945 |
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.