[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: 33CFR157.24a]

[Page 468-469]
 
                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 B--Design, Equipment, and Installation
 
Sec. 157.24a  Submission of calculations, plans, and specifications for 
existing vessels installing segregated ballast tanks.

    (a) Before modifications are made to a U.S. tank vessel to meet Sec. 
157.10a(a)(1), Sec. 157.10a(c)(1), Sec. 157.10c(b)(1), or Sec. 
157.10c(c)(1), the vessel's owner or operator must submit the following 
to the Officer in Charge, Marine Inspection, of the zone where the 
modification will be made or to the appropriate Coast Guard technical 
office listed in 157.100(b):
    (1) A drawing or diagram of the pumping and piping system for the 
segregated ballast tanks.
    (2) A drawing of the segregated ballast tank arrangement.
    (3) Documentation, calculations, or revised stability information to 
show that the vessel, with the addition of the segregated ballast tanks, 
meets the stability standards for load line assignment in 46 CFR Part 
42.
    (4) Documentation, calculations, or a revised loading manual to show 
that the vessel, with the addition of the segregated ballast tanks, 
meets the structural standards in 46 CFR Part 32.
    (5) Plans and calculations to show that the vessel, as modified, 
complies with the segregated ballast capacity and distribution 
requirements in Sec. 157.10a.
    (b) Before each foreign vessel under Sec. 157.10a(a)(1) or Sec. 
157.10a(c)(1) enters the navigable waters of the United States, the 
owner or operator of that vessel must--

[[Page 469]]

    (1) Submit to the Commandant (G-MOC), U.S. Coast Guard, Washington, 
D.C. 20593-0001--
    (i) A letter from the authority that assigns the load line to the 
vessel finding that the location of the segregated ballast tanks is 
acceptable; and
    (ii) Plans and calculations to substantiate compliance with the 
segregated ballast capacity requirements in Sec. 157.09(b); or
    (2) Submit to the Officer in Charge, Marine Inspection, of the zone 
in which the first U.S. port call is made, a letter or document from the 
government of vessel's flag state certifying that the vessel complies 
with the segregated ballast capacity requirements in Sec. 157.09(b) or 
Regulation 13 of the MARPOL 73/78.
    (c) On January 1, 1986, or 15 years after the date it was delivered 
to the original owner, or 15 years after the completion of a major 
conversion, whichever is later, before that vessel enters the navigable 
waters of the United States, the owner or operator of an existing 
foreign vessel under Sec. 157.10c(b)(1) or Sec. 157.10c(c)(1) must--
    (1) Submit to the Commandant (G-MOC), U.S. Coast Guard, Washington, 
D.C. 20593-0001--
    (i) A letter from the authority that assigns the load line to the 
vessel finding that the location of the segregated ballast tanks is 
acceptable; and
    (ii) Plans and calculations to substantiate compliance with the 
applicable segregated ballast capacity requirements in Sec. 157.09(b) or 
Sec. 157.10c(d); or
    (2) Submit to the Officer in Charge, Marine Inspection, of the zone 
in which the first U.S. port call is made a letter from an authorized CS 
or the government of the vessel's flag state certifying that the vessel 
complies with the segregated ballast capacity requirements in Sec. 
157.09(b) or Sec. 157.10c(d).

(Reporting and recordkeeping requirements approved by the Office of 
Management and Budget under control number 2115-0520)

[CGD 82-28, 50 FR 11626 and 11630, Mar. 22, 1985, as amended by CGD 88-
052, 53 FR 25122, July 1, 1988; CGD 96-026, 61 FR 33668, June 28, 1996; 
USCG-2000-7641, 66 FR 55573, Nov. 2, 2001]