MARPOL Consolidated Edition 2017

Annex /: Regulations for the prevention of pollution by oil
Regulation 18
5 Notwithstanding the provisions of paragraph 2 of this regu lation, the segregated ballast conditions for oil
tankers less than 150 m in length shall be to the satisfaction of the Administration.
SEE INTERPRETATION 36
Crude oil tankers of 40,000 tonnes deadweight and above
delivered on or before 1 June 1982
6 Subject to the provisions of paragraph 7 of this regu lation, every crude oil tanker of 40,000 tonnes
deadweight and above delivered on or before 1 June 1982, as defined in regulation 1.28.3, shall be provided
with segregated ba llast tanks and shal l comply with the requ irements of paragraphs 2 and 3 of this regulation.
7 Crude oil tankers referred to in paragraph 6 of this regulation may, in lieu of being provided w ith
segregated tanks, operate with a cargo tank cleaning procedure using crude oil washing in accordance with
regulations 33 and 35 of this Annex unless the crude oil tanker is intended to carry crude oil w hich is not
su itable for crude oil washing.
SEE INTERPRETATION 37
Product carriers of 40,000 tonnes deadweight and above
delivered on or before 1 June 1982
8 Every product carrier of 40,000 tonnes deadweight and above delivered on or before 1 June 1982,
as defined in regulation 1.28.3, shall be provided w ith segregated ballast tanks and shal l comply w ith the
requirements of paragraphs 2 and 3 of this regulation, or alternatively operate with dedicated clean bal last
tanks in accordance with the following provisions:
.1 The product carrier shall have adequate tank capacity, dedicated solely to the ca rriage of clean
ballast as defined in regulation 1.1 7 of this Annex, to meet the requirements of paragraphs 2 and 3
of this regulation .
. 2 The arrangements and operational procedures for dedicated clean ballast tanks sha ll comply with
the requirements established by the Administration. Such requirements shal l contain at least al l the
provisions of the revised Specifications for Oil Tankers with Dedicated Clean Ballast Tanks adopted
by the Organization by resolution A.495(XII) .
. 3 The product carrier shall be equipped with an oil content meter, approved by the Administration
on the basis of specifications recommended by the Organization, to enable supervision of the oil
content in ballast water being discharged.*
SEE INTERPRETATION 39
.4 Every product carrier operating with dedicated clean ballast tanks shal l be provided with a
Dedicated Clean Bal last Tank Operation Manualt detailing the system and specifying operational
procedures. Such a M anual shall be to the satisfaction of the Administration and shal l contain all
the information set out in the Specifications referred to in subparagraph 8.2 of this regulation. If an
alteration affecting the dedicated clean ballast tank system is made, the Operation Manual shall be
revised accordingly.
SEE INTERPRETATIONS 37 AND 38
• For oil content meters installed on oil tankers built prior to 2 October 1986, refer to the Recommendation on international
performance and test specifications for oily-water separating equipment and oil content meters (resolution A.393(X)). For oil
content meters as part of discharge monitoring and control systems installed on oil tankers built on or after 2 October 1986, refer
to Guidelines and specifica tions for oil discharge monitoring and control systems for oil tankers (resolution A.586(14)). For oil content
meters as part of discharge monitoring and control systems installed on oil tankers built on or after 1 January 2005, refer to Revised
guidelines and specifications for oil discharge monitoring and control systems for oil tankers (resolution MEPC.108(49), as amended
by resolution MEPC.240(65)).
t Refer to resolution A.49S(XI I) fo r the standard format of the Manual.
70 MARPOL CONSOLIDATED EDITION 2017