40 C.F.R. · Protection of Environment
40 C.F.R. § 52.1321

Classification of regions.

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Regulatory Text

40 C.F.R. § 52.1321 — Classification of regions.

§ 52.1321 Classification of regions. The Missouri plans were evaluated on the basis of the following classifications: Air quality control region Pollutant Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Photochemical oxidants (hydrocarbons) Metropolitan Kansas City Interstate I III III I I Southwest Missouri Intrastate I III III III III Southeast Missouri Intrastate III III III III III Northern Missouri Intrastate II III III III III Metropolitan St. Louis Interstate I I III I I [37 FR 10875, May 31, 1972, as amended at 39 FR 16347, May 8, 1974]

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40 C.F.R. § 52.1321
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The regulatory text of 40 C.F.R. § 52.1321 is reproduced from the official Code of Federal Regulations as published by the Office of the Federal Register and the National Archives and Records Administration.
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