46 CFR 153.351
§ 153.351 Location of 4m vent discharges.
United States · 46 CFR — Shipping · Status: effective
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- Citation
- 46 CFR 153.351, § 153.351 Location of 4m vent discharges, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/228673
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Full text
Except as prescribed in § 153.353, a 4m venting system must discharge:
(a) At least 4m (approx. 13.1 ft) above the higher of:
(1) the weatherdeck; or
(2) any walkway that is within a 4m (approx. 13.1 ft) horizontal radius from the vent discharge.
(b) At least 10m (approx. 32.8 ft) from air intakes for, or openings into, accommodation or service spaces.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.