GroundRules
40 CFR 52.2571: Classification of regions.
Where this section sits in the code
- Title 40—Protection of Environment
- CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
- SUBCHAPTER C—AIR PROGRAMS
- PART 52—APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS
- Subpart YY—Wisconsin
The Wisconsin plan was evaluated on the basis of the following classifications:
Air quality control region Pollutant
Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Ozone
Duluth (Minnesota)-Superior (Wisconsin) Interstate I II III III III
North Central Wisconsin Intrastate II III III III III
Lake Michigan Intrastate II III III III III
Southeast Minnesota-La Crosse (Wisconsin) Interstate II IA III III III
Southern Wisconsin Intrastate II III III III III
Southeastern Wisconsin Intrastate I II III III I
Rockford (Illinois)-Jamesville-Beloit (Wisconsin) Interstate II III III III III
Metropolitan Dubuque Interstate I III III III III
Collected 2026-08-27T02:26:04Z. Source file · JSON