Classification of regions.

§ 52.2571 Classification of regions.

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) InterstateIIIIIIIIIIII
North Central Wisconsin IntrastateIIIIIIIIIIIIII
Lake Michigan IntrastateIIIIIIIIIIIIII
Southeast Minnesota-La Crosse (Wisconsin) InterstateIIIAIIIIIIIII
Southern Wisconsin IntrastateIIIIIIIIIIIIII
Southeastern Wisconsin IntrastateIIIIIIIIII
Rockford (Illinois)-Jamesville-Beloit (Wisconsin) InterstateIIIIIIIIIIIIII
Metropolitan Dubuque InterstateIIIIIIIIIIIII
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