§153.353. High velocity vents.
46 C.F.R. § 153.353
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:
The discharge is a vertical, unimpeded jet;
The jet has a minimum exit velocity of 30 m/sec (approx. 98.4 ft/sec); and
The high velocity vent has been approved by Commandant (CG-ENG).
Notes, amendments, and revision history
Amendments
[CGD 78-128, 47 FR 21208, May 17, 1982, as amended by CGD 82-063b, 48 FR 4782, Feb. 3, 1983]
Authority
Authority: 46 U.S.C. 3703; Department of Homeland Security Delegation No. 0170.1. Section 153.40 issued under 49 U.S.C. 5103. Sections 153.470 through 153.491, 153.1100 through 153.1132, and 153.1600 through 153.1608 also issued under 33 U.S.C. 1903 (b).
Source
Source: CGD 73-96, 42 FR 49027, Sept. 26, 1977, unless otherwise noted.
Amendments
[CGD 78-128, 47 FR 21208, May 17, 1982, as amended by CGD 82-063b, 48 FR 4782, Feb. 3, 1983]