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42 U.S.C. 7401, et seq.
63 FR 7271, Feb. 12, 1998, unless otherwise noted.
65 FR 51433, Aug. 23, 2000, unless otherwise noted.
70 FR 18123, Apr. 8, 2005, unless otherwise noted.
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The air quality control region which encompasses the Quinault Reservation is classified as follows for purposes of episode plans:
| Pollutant | Classification |
|---|---|
| Carbon monoxide | III |
| Nitrogen dioxide | III |
| Ozone | III |
| Particulate matter (PM10) | II |
| Sulfur oxides | II |