46 CFR 153.353
§ 153.353 High velocity vents.
United States · 46 CFR — Shipping · Status: effective
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- Citation
- 46 CFR 153.353, § 153.353 High velocity vents, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/228675
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Full text
The discharge point of a B/3 or 4m venting system must be located at least 3m (approx. 10 ft) above the weatherdeck or walkway if:
(a) The discharge is a vertical, unimpeded jet;
(b) The jet has a minimum exit velocity of 30 m/sec (approx. 98.4 ft/sec); and
(c) The high velocity vent has been approved by Commandant (CG-ENG).
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.