[Code of Federal Regulations]
[Title 33, Volume 2]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 33CFR157.45]

[Page 472]
 
                TITLE 33--NAVIGATION AND NAVIGABLE WATERS
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 157--RULES FOR THE PROTECTION OF THE MARINE ENVIRONMENT RELATING TO 
TANK VESSELS CARRYING OIL IN BULK--Table of Contents
 
                       Subpart C--Vessel Operation
 
Sec. 157.45  Valves in cargo or ballast piping system.

    When a tank vessel is at sea and the tanks contain oil, valves and 
closing devices in the cargo or ballast piping system or in the transfer 
system must be kept closed except they may be opened for cargo or 
ballast transfer to trim the vessel.