[Code of Federal Regulations]
[Title 33, Volume 2]
[Revised as of July 1, 2005]
From the U.S. Government Printing Office via GPO Access
[CITE: 33CFR155.120]

[Page 389-390]
 
                TITLE 33--NAVIGATION AND NAVIGABLE WATERS
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 155_OIL OR HAZARDOUS MATERIAL POLLUTION PREVENTION REGULATIONS 
FOR VESSELS--Table of Contents
 
                            Subpart A_General
 
Sec. 155.120  Equivalents.

    (a) For ships required to be surveyed under Sec. 151.17 of this 
chapter, the Commandant may, upon receipt of a written request, allow 
any fitting, material, appliance or apparatus to be fitted

[[Page 390]]

in a ship as an alternative to that required by both MARPOL 73/78 and 
subpart B of this part if such fitting, material, appliance, or 
apparatus is at least as effective as that required by subpart B. 
Substitution of operational methods to control the discharge of oil in 
place of those design and construction features prescribed by MARPOL 73/
78 that are also prescribed by subpart B of this part is not allowed.
    (b) Any equivalent to a feature prescribed by MARPOL 73/78 that is 
authorized for a ship having an IOPP Certificate is noted on that 
Certificate.
    (c) For tank vessels required to have overfill devices installed 
under parts 155 and 156 of this chapter, the Commandant may, upon 
receipt of a written request, allow any fitting, material, appliance, or 
apparatus to be fitted in a tank vessel as an alternative to the 
required overfill device(s) that are specified in these parts if the 
proposed alternative device is at least as effective as that required in 
the regulations.

[CGD 75-124a, 48 FR 45714, Oct. 6, 1983, as amended by CGD 90-071a, 59 
FR 53290, Oct. 21, 1994]