1. LawStack
  2. Title 40 - Protection of Environment
  3. Chapter I - ENVIRONMENTAL PROTECTION AGENCY
  4. Subchapter B - GRANTS AND OTHER FEDERAL ASSISTANCE
  5. Part 49 - INDIAN COUNTRY: AIR QUALITY PLANNING AND MANAGEMENT
  6. Subpart M - Implementation Plans for Tribes—Region X
  7. Topic - Implementation Plan for the Sauk-Suiattle Indian Tribe of Washington
  8. 40 CFR § 49.10645
40 CFR § 49.10645
Classification of regions for episode plans
June 9, 2020
CFR

The air quality control region which encompasses the Reservation of the Sauk-Suiattle Tribe is classified as follows for purposes of episode plans:

Open Table
Pollutant Classification
Carbon monoxide I
Nitrogen dioxide III
Ozone I
Particulate matter (PM10) I
Sulfur oxides IA
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§ 49.10644 Source surveillance. [Reserved]
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§ 49.10646 Contents of implementation plan

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