[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: 46CFR171.122]

[Page 142]
 
                           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 G_Watertight Integrity Above the Margin Line
 
Sec. 171.122  Watertight integrity above the margin line in a vessel of 
100 gross tons or more.

    (a) For the purpose of this section, a partial watertight bulkhead 
is one in which all portions are not watertight.
    (b) Except as provided in paragraph (d) of this section, the 
bulkhead deck or a deck above it must be weathertight.
    (c) Partial watertight bulkheads or web frames must be located in 
the immediate vicinity of main transverse watertight bulkheads to 
minimize as much as practicable the entry and spread of water above the 
bulkhead deck.
    (d) If a partial watertight bulkhead or web frame is located on the 
bulkhead deck in order to comply with paragraph (c) of this section, the 
joint between it and the shell and bulkhead deck must be watertight.
    (e) If a partial watertight bulkhead does not line up with a main 
transverse watertight bulkhead below the bulkhead deck, the bulkhead 
deck between them must be watertight.
    (f) Each opening in an exposed weather deck must--
    (1) Have a coaming that complies with the height requirements in 
table 171.124(d); and
    (2) Have a means for closing it weathertight.
    (g) Each port light located between the bulkhead deck and the next 
deck above the bulkhead deck must have an inside dead cover than can be 
secured watertight.

[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 85-080, 61 FR 
945, Jan. 10, 1996; 62 FR 51354, Sept. 30, 1997]