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40 CFR 49.10405

§ 49.10405 Classification of regions for episode plans.

United States · 40 CFR — Protection of Environment · Status: effective

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40 CFR 49.10405, § 49.10405 Classification of regions for episode plans, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/169447
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The air quality control region which encompasses the Nez Perce Reservation is classified as follows for purposes of episode plans:

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.