[Code of Federal Regulations]
[Title 46, Volume 2]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR45.133]

[Page 84]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 45_GREAT LAKES LOAD LINES--Table of Contents
 
                   Subpart D_Conditions of Assignment
 
Sec. 45.133  Air pipes.

    (a) Where an air pipe to any tank extends above the freeboard or 
superstructure deck--
    (1) The exposed part of the air pipe must be made of steel and of 
sufficient thickness to avoid breaking from impact of boarding seas.
    (2) The air pipe must have a permanently attached means of closing 
its opening; and
    (3) The height from the deck to any point where water may obtain 
access below deck must be at least 30 in above the freeboard deck, 24 in 
above raised quarter decks, and 12 in above other superstructure decks.
    (b) If the height required in paragraph (a) of this section 
interferes with working the ship, the Commandant may approve a lower 
height after considering the closing arrangements.