Regulations last checked for updates: May 16, 2024

Title 40 - Protection of Environment last revised: May 14, 2024
All TitlesTitle 40Chapter IPart 52Subpart YY - Subpart YY—Wisconsin
View all text of Subpart YY [§ 52.2569 - § 52.2593]
§ 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
[37 FR 10902, May 31, 1972, as amended at 39 FR 16348, May 8, 1974; 45 FR 2322, Jan. 11, 1980]
cite as: 40 CFR 52.2571
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