§178.420. Drainage of cockpit vessels.
46 C.F.R. § 178.420
Except as follows, the cockpit on a cockpit vessel may be watertight:
A cockpit may have companionways if the companionway openings have watertight doors, or weathertight doors and coamings which meet § 179.360 of this subchapter.
A cockpit may have ventilation openings along its inner periphery if the vessel operates only on protected or partially protected waters.
The cockpit deck of a cockpit vessel that operates on exposed or partially protected waters must be at least 255 millimeters (10 inches) above the deepest load waterline unless the vessel complies with:
The intact stability requirements of §§ 170.170, 170.173, 171.050, 171.055, and 171.057 in subchapter S of this chapter;
The Type II subdivision requirements in §§ 171.070, 171.072, and 171.073 in subchapter S of this chapter; and
The damage stability requirements in § 171.080 in subchapter S of this chapter.
The cockpit deck of a cockpit vessel that does not operate on exposed or partially protected waters must be located as high above the deepest load waterline as practicable.
The cockpit must be self-bailing. Scuppers or freeing ports for the cockpit deck of a cockpit vessel must:
Be located to allow rapid clearing of water in all probable conditions of list and trim;
Have a combined drainage area of at least the area required by § 178.450 of this part; and
If the deck is less than 255 millimeters (10 inches) above the deepest load waterline of the vessel, be fitted with non-return devices.
Notes, amendments, and revision history
Authority
Authority: 43 U.S.C. 1333; 46 U.S.C. 2103, 3306, 3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation No. 00170.1, Revision No. 01.3.
Source
Source: CGD 85-080, 61 FR 966, Jan. 10, 1996, unless otherwise noted.