CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER S—SUBDIVISION AND STABILITY (parts 170 to 174) > PART 171—SPECIAL RULES PERTAINING TO VESSELS CARRYING PASSENGERS > SUBPART E—Penetrations and Openings in Watertight Bulkheads (§171.110 to §171.114) > 171.112—Watertight door openings.

171.112—Watertight door openings.

(a) The opening for a watertight door must be located as high in the bulkhead and as far inboard as practicable.
(b) No more than one door, other than a door to a bunker or shaft alley, may be fitted in a main transverse watertight bulkhead within spaces containing the following:
(1) Main and auxiliary propulsion machinery.
(2) Propulsion boilers.
(3) Permanent bunkers.