View all text of Subpart P [§ 52.769 - § 52.800]
§ 52.771 - Classification of regions.
(a) The Indiana plan was evaluated on the basis of the following classifications:
Air quality control region | Pollutant | Particulate matter | Sulfur oxides | Nitrogen dioxide | Carbon monoxide | Photochemical oxidants (hydrocarbons) | East Central Indiana Intrastate | II | II | III | III | III | Evansville (Indiana)-Owensboro-Henderson (Kentucky) Interstate | I | II | III | III | III | Louisville Interstate | I | I | III | III | I | Metropolitan Chicago Interstate (Indiana-Illinois) | I | I | I | I | I | Metropolitan Cincinnati Interstate | I | II | III | III | I | Metropolitan Indianapolis Intrastate | I | I | I | I | I | Northeast Indiana Intrastate | II | III | III | III | III | South Bend-Elkhart (Indiana)-Benton Harbor (Michigan) Interstate | I | IA | III | III | III | Southern Indiana Intrastate | IA | IA | III | III | III | Wabash Valley Intrastate | I | I | III | III | III |
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(b) The requirements of § 51.150 of this chapter are not met by the classification of counties in APC-22 for the purposes of attainment and maintenance of the total suspended particulate ambient air quality standards.
(c) The requirements of § 51.150 of this chapter are not met by the classification of counties in APC-22 for the purposes of attainment and maintenance of the photochemical oxidant (hydrocarbon) ambient air quality standards.
(d) The requirements of § 51.150 of this chapter are not met by the classification of Jefferson, LaPorte, Porter, Vigo and Warrick Counties in Indiana in Regulation APC-22 for the purposes of attainment and maintenance of the sulfur dioxide ambient air quality standards.