[Code of Federal Regulations]
[Title 46, Volume 7]
[Revised as of October 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR182.710]

[Page 285]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 182--MACHINERY INSTALLATION--Table of Contents
 
                        Subpart G--Piping Systems
 
Sec. 182.710  Piping for vital systems.

    (a) Vital systems are those systems that are vital to a vessel's 
survivability and safety. For the purpose of this part the following are 
vital systems:
    (1) Fuel system;
    (2) Fire main;
    (3) CO2 and Halon systems;
    (4) Bilge system;
    (5) Steering system;
    (6) Propulsion system and its necessary auxiliaries and controls;
    (7) Ship's service and emergency electrical generation system and 
its necessary auxiliaries; and
    (8) A marine engineering system identified by the cognizant OCMI as 
being crucial to the survival of the vessel or to the protection of the 
personnel on board.
    (b) For the purpose of this part, a system not identified in 
paragraph (a) of this section is a non-vital system.
    (c) Piping used in a vital system must:
    (1) Be composed of ferrous materials except when:
    (i) Nonmetallic piping materials are permitted by Sec. 182.720; or
    (ii) Nonferrous metallic piping materials are permitted by 
Sec. 182.730; and
    (2) If subject to a pressure of more than 1,034 kPa (150 psig), be 
designed, fabricated, and inspected in accordance with the principles of 
American National Standards Institute (ANSI) B 31.1, ``Code for Pressure 
Piping, Power Piping,'' or other standard specified by the Commandant.