33 CFR 117.21
§ 117.21 Signalling for an opened drawbridge.
United States · 33 CFR — Navigation and Navigable Waters · Status: effective
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- Citation
- 33 CFR 117.21, § 117.21 Signalling for an opened drawbridge, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/150628
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Full text
When a vessel approaches a drawbridge with the draw in the open position, the vessel shall give the opening signal. If no acknowledgment is received within 30 seconds, the vessel may proceed, with caution, through the open draw.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.