[Code of Federal Regulations] [Title 46, Volume 7] [Revised as of October 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 46CFR171.112] [Page 139-140] TITLE 46--SHIPPING CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 171_SPECIAL RULES PERTAINING TO VESSELS CARRYING PASSENGERS--Table of Contents Subpart E_Penetrations and Openings in Watertight Bulkheads Sec. 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. [[Page 140]] (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.