Introduction | Annex I | Annex II | Annex III | Annex IV | Annex V | Annex VI | Additional Information
Annex I
 
Chapter 1 - General
 
1 Definitions
2 Application
3 Exemptions and waivers
4 Exceptions
5 Equivalents
 
Chapter 2 - Surveys and certification
 
6 Surveys
7 Issue or endorsement of certificate
8 Issue or endorsement of certificate by another Government
9 Form of certificate
10 Duration and validity of certificate
11 Port State control on operational requirements
 
Chapter 3 - Requirements for machinery spaces of all ships
Part A - Construction
12 Tanks for oil residues (sludge)
13 Standard discharge connection
 
Part B - Equipment
14 Oil filtering equipment
 
Part C - Control of operational discharge of oil
15 Control of discharge of oil
16 Segregation of oil and water ballast and carriage of oil in forepeak tanks
17 Oil Record Book, Part I - Machinery space operations
 
Chapter 4 - Requirements for the cargo areas of oil tankers
 
Part A - Construction
18 Segregated ballast tanks
19 Double hull and double bottom requirements for oil tankers delivered on or after 6 July 1996
20 Double hull and double bottom requirements for oil tankers delivered before 6 July 1996
21 Prevention of oil pollution from oil tankers carrying heavy grade oil as cargo
22 Pump-room bottom protection
23 Accidental oil outflow performance
24 Damage assumptions
25 Hypothetical outflow of oil
26 Limitations of size and arrangement of cargo tanks
27 Intact stability
28 Subdivision and damage stability
29 Slop tanks
30 Pumping, piping and discharge arrangement
 
Part B - Equipment
31 Oil discharge monitoring and control system
32 Oil/water interface detector
33 Crude oil washing requirements
 
Part C - Control of operational discharge of oil
34 Control of discharge of oil
35 Crude oil washing operations
36 Oil Record Book, Part II - Cargo/ballast operations
 
Chapter 5 - Prevention of oil pollution arising from an oil pollution incident
 
37 Shipboard oil pollution emergency plan
 
Chapter 6 - Reception facilities
 
38 Reception facilities
 
Chapter 7 - Special requirements for fixed or floating platforms
39 Special requirements for fixed or floating platforms
 
Appendices to Annex I
 
AI List of oils
AII Form of IOPP Certificate and Supplements
AIII Form of Oil Record Book
 
Unified Interpretations of Annex I
 
Appendices to Unified Interpretations of Annex I
 
A1 Guidance to Administrations concerning draughts recommended for segregated ballast tankers below 150 m in length
 
A2 Interim recommendation for a unified interpretation of regulations 18.12-18.15 ''Protective location of segregated ballast spaces
 
A3 Connection of small diameter line to the manifold valve
 
A4 Specifications for the design, installation and operation of a part flow system for control of overboard discharges
 
A5 Discharges from fixed or floating platforms

Annex I- Regulations for the Prevention of Pollution by Oil

Chapter 4 - Requirements for the cargo area of oil tankers. Part B - Equipment
Regulation 31 - Oil discharge monitoring and control system

1 Subject to the provisions of paragraphs 4 and 5 of regulation 3 of this Annex, oil tankers of 150 gross tonnage and above shall be equipped with an oil discharge monitoring and control system approved by the Administration.

2 In considering the design of the oil content meter to be incorporated in the system, the Administration shall have regard to the specification recommended by the Organization.* The system shall be fitted with a recording device to provide a continuous record of the discharge in litres per nautical mile and total quantity discharged, or the oil content and rate of discharge. This record shall be identifiable as to time and date and shall be kept for at least three years. The oil discharge monitoring and control system shall come into operation when there is any discharge of effluent into the sea and shall be such as will ensure that any discharge of oily mixture is automatically stopped when the instantaneous rate of discharge of oil exceeds that permitted by regulation 34 of this Annex. Any failure of this monitoring and control system shall stop the discharge. In the event of failure of the oil discharge monitoring and control system a manually operated alternative method may be used, but the defective unit shall be made operable as soon as possible. Subject to allowance by the port State authority, a tanker with a defective oil discharge monitoring and control system may undertake one ballast voyage before proceeding to a repair port.

3 The oil discharge monitoring and control system shall be designed and installed in compliance with the guidelines and specifications for oil discharge monitoring and control systems for oil tankers developed by the Organization†. Administrations may accept such specific arrangements as detailed in the Guidelines and Specifications.

4 Instructions as to the operation of the system shall be in accordance with an operational manual approved by the Administration. They shall cover manual as well as automatic operations and shall be intended to ensure that at no time shall oil be discharged except in compliance with the conditions specified in regulation 34 of this Annex.

* 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 adopted by the Organization by 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 the Guidelines and specifications for oil discharge monitoring and control systems for oil tankers adopted by the Organization by 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 the revised Guidelines and specifications for oil discharge monitoring and control systems for oil tankers adopted by the Organization by resolution MEPC.108(49).

† Refer to the Guidelines and specifications for oil discharge monitoring and control systems for oil tankers adopted by the Organization by resolution A.496(XII) or the Revised Guidelines and specifications for oil discharge monitoring and control systems for oil tankers adopted by the Organization by resolution A.586(14), or the Revised Guidelines and specifications for oil discharge monitoring and control systems for oil tankers adopted by the Organization by resolution MEPC.108(49) as applicable.