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 Stillaguamish Tribe of Washington
  8. 40 CFR § 49.10885
40 CFR § 49.10885
Classification of regions for episode plans
June 9, 2020
CFR

The air quality control region which encompasses the Reservation of the Stillaguamish 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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§ 49.10884 Source surveillance. [Reserved]
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§ 49.10886 Contents of implementation plan

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