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. Hawaii
  8. Classification of regions.

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§ 52.621 Classification of regions.

The Hawaii 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)
State of Hawaii II III III III III

[37 FR 10860, May 31, 1972]


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