Code of Federal Regulations · Section
§ 153.351 — Location Of 4m Vent Discharges
46 C.F.R. § 153.351
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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.
Authorizing Statute
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Administration and enforcement33 U.S.C. § 1903
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General regulatory authority49 U.S.C. § 5103
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Regulations46 U.S.C. § 3703