Classification of regions.

  1. Law
  2. CFR 40
  3. Protection of Environment
  4. Environmental Protection Agency
  5. Air Programs
  6. Approval and Promulgation of Implementation Plans
  7. Pennsylvania
  8. Classification of regions.

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§ 52.2021 Classification of regions.

The Pennsylvania plan was evaluated on the basis of the following classifications:

Air quality control region Pollutant
Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Ozone (hydrocarbons)
Metropolitan Philadelphia Interstate I I III I I
Northeast Pennsylvania-Upper Delaware Valley Interstate I II III III III
South Central Pennsylvania Intrastate I II III III III
Central Pennsylvania Intrastate I III III III III
Southwest Pennsylvania Intrastate I I III I I
Northwest Pennsylvania-Youngstown Interstate I II III III III

[37 FR 10889, May 31, 1972, as amended at 39 FR 16347, May 8, 1974; 45 FR 33627, May 20, 1980]


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