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40 CFR 51.151

§ 51.151 Significant harm levels.

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

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40 CFR 51.151, § 51.151 Significant harm levels, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/169776
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Full text

Each plan for a Priority I region must include a contingency plan which must, as a minimum, provide for taking action necessary to prevent ambient pollutant concentrations at any location in such region from reaching the following levels:

Legislative history

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