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40 CFR 201.21

§ 201.21 Quantities measured.

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

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40 CFR 201.21, § 201.21 Quantities measured, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/184452
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The quantities to be measured under the test conditions described below, are the A-weighted sound levels for “fast” or “slow” meter response as defined in the American National Standard S1.4-1971.

Legislative history

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