U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 40Chapter IPart 52Subpart PP - Subpart PP—South Carolina
View all text of Subpart PP [§ 52.2120 - § 52.2141]
§ 52.2121 - Classification of regions.

The South Carolina 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)
Augusta (Georgia)-Aiken (South Carolina) InterstateIIIIIIIIIII
Metropolitan Charlotte InterstateIIIIIIIIII
Camden-Sumter IntrastateIIIIIIIIIIIIII
Charleston IntrastateIIIIIIIIIII
Columbia IntrastateIIIIIIIIIIIIII
Florence IntrastateIIIIIIIIIIIIIII
Georgetown IntrastateIIIIIIIIIIIIII
Greenville-Spartanburg IntrastateIIIIIIIIIIIII
Greenwood IntrastateIIIIIIIIIIIIIII
Savannah (Georgia)-Beaufort (South Carolina) InterstateIIIIIIIIIII
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