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42 U.S.C. 7401 et seq.
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Subscribe to: 40 CFR 52.621
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Nomenclature changes to part 52 appear at 81 FR 74586, Oct. 26, 2016.
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]