Regulations last checked for updates: Nov 22, 2024

Title 40 - Protection of Environment last revised: Nov 20, 2024
All TitlesTitle 40Chapter IPart 49Subpart M - Subpart M—Implementation Plans for Tribes—Region X
View all text of Subpart M [§ 49.9861 - § 49.17810]
§ 49.9985 - Classification of regions for episode plans.

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 monoxideIII
Nitrogen dioxideIII
OzoneIII
Particulate matter (PM10)II
Sulfur oxidesIII
authority: 42 U.S.C. 7401,
source: 63 FR 7271, Feb. 12, 1998, unless otherwise noted.
cite as: 40 CFR 49.9985
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