Classification of regions.

§ 52.1271 Classification of regions.

The Mississippi 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)
Mobile (Alabama)-Pensacola-Panama City (Florida)-Gulfport (Mississippi) InterstateIIIIIIIII
Metropolitan Memphis InterstateIIIIIIIIIII
Mississippi Delta IntrastateIIIIIIIIIIIIIII
Northeast Mississippi IntrastateIIIIIIIIIIIIII
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