40 C.F.R. § 49.9985
Classification of regions for episode plans.
Cite as 40 C.F.R. § 49.9985 (2026)
The air quality control region which encompasses the Reservation of the Confederated Tribes of the Coos, Lower Umpqua and Siuslaw Indians 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 III