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. Utah
  8. Classification of regions.

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§ 52.2321 Classification of regions.

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

Expand Table
Air quality control region Pollutant
Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Photochemical oxidants (hydrocarbons)
Wasatch Front Intrastate I I I I I
Four Corners Interstate IA IA III III III
Utah Intrastate III III III III III

[37 FR 10898, May 31, 1972, as amended at 39 FR 16347, May 8, 1974]


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