Code of Federal Regulations Title 46. Shipping § 46.174.220 Hatches and coamings

(a) Each hatch exposed to the weather must be watertight, except that the following hatches may be only weathertight:

(b) Each hatch cover must—

(c) Each hatch that provides access to quarters or to accommodation spaces for crew members or offshore workers must be capable of being opened and closed from either side.

(d) Except as provided by paragraph (e) of this section, a weathertight door with a permanent watertight coaming at least 380 millimeters (15 inches) high must be installed for each opening in a deckhouse or companionway that—

(e) If an opening in a deckhouse or companionway has a Class–1 watertight door installed, the height of the watertight coaming need only accommodate the door.