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40 CFR 52.671

§ 52.671 Classification of regions.

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

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40 CFR 52.671, § 52.671 Classification of regions, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/170295
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The Idaho plan was evaluated on the basis of the following classifications:

Legislative history

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