Code of Federal Regulations · Section
§ 150.720 — What Are The Requirements For Sound Signals?
33 C.F.R. § 150.720
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The sound signal on each pumping platform complex must be operated whenever the visibility in any horizontal direction from the structure is less than 5 miles. If the platform is under construction, this requirement may be met by the use of a 2-second whistle blast, made every 20 seconds by a vessel moored at the platform.
Authorizing Statute
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Regulations46 U.S.C. § 70034
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Oil and hazardous substance liability33 U.S.C. § 1321