Section 5 - Information and procedures
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Statutory Documents - IMO Publications and Documents - International Conventions - MARPOL - International Convention for the Prevention of Pollution from Ships - Annex II of MARPOL 73/78Regulations for the Control of Pollution by Noxious Liquid Substances in Bulk - Appendix 4 - Standard Format for the Procedures and Arrangements Manual - Section 5 - Information and procedures

Section 5 - Information and procedures

 This section shall contain procedures, which will depend on the age of the ship and pumping efficiency. Examples of flow diagram referred to in this section are given at addendum A and incorporate comprehensive requirements applicable to both new and existing ships. The Manual for a particular ship shall only contain those requirements specifically applicable to that ship.

Information relating to melting point and viscosity, for those substances which have a melting point equal to or greater than 0°C or a viscosity equal or greater than 50 mPa.s at 20°C, shall be obtained from the shipping document.

For substances allowed to be carried, reference is made to the relevant Certificate.

The Manual shall contain:
  Table 1 : Deleted
  Table 2 : Cargo tank information.
  Addendum A : Flow diagram.
  Addendum B : Prewash procedures.
  Addendum C : Ventilation procedures.
  Addendum D : Additional information and operational instructions when required or accepted by the Administration.

Outlines of the above table and addenda are shown below.




Table 2 Cargo tank information

Tank no.footnote Capacity
(m3) 		Stripping quantity
(litres)
     
     
     
     
     
     
     
     
     
Parent topic: Appendix 4 - Standard Format for the Procedures and Arrangements Manual

Addendum A - Flow Diagrams - Cleaning of Cargo Tanks and Disposal of Tank Washings/Ballast Containing Residues of Category X,Y, and Z Substances

  Note 1: This flow diagram shows the basic requirements applicable to all age groups of ships and is for guidance only.

  Note 2: All discharges into the sea are regulated by Annex II.

  Note 3: Within the Antarctic area, any discharge into the sea of Noxious Liquid Substances or mixtures containing such substances is prohibited.

Note 4: Within the areas specified in regulation 13.9 of Annex II, regulation 13.7.1.4 applies to substances that are identified by '16.2.7' in column 'o' of chapter 17 of the IBC Code.

Figure A

Ship details Stripping requirements (in litres)
Category X Category Y Category Z
New Ships: keel laid after 01/01/2007 75 75 75
IBC ships until 01/01/2007 100 +50 tolerance 100 + 50 tolerance 300 + 50 tolerance
BCH ships 300 + 50 tolerance 300 + 50 tolerance 900 + 50 tolerance
Other ships: keel-laid before 01/01/2007 N/A N/A Empty to the most possible extent
Cleaning and disposal procedures (CDP)
(Start at the top of the column under the CDP number specified and complete each item procedure in the sequence where marked)
No. Operation Procedure Number
1(a) 1(b) 2(a) 2(b) 3
1 Strip tank and piping to maximum extent, at least in compliance with the procedures in section 3 of this Manual X X X X X
2 Apply prewash in accordance with Addendum B of this Manual and discharge residue to reception facility X X      
3 Apply subsequent wash, additional to the prewash, with:
a complete cycle of the cleaning machine(s) for ships built before 1 July 1994
a water quantity not less than calculated with "k"=1.0 for ships built on or after 1 July 1994 		  X      
4 Apply ventilation procedure in accordance with Addendum C of this Manual         X
5 Ballast tanks or wash tank to commercial standards X   X X X
6 Ballast added to tank   X      
7 Conditions for discharge of ballast/residue/water mixtures other than prewash:          
 
.1 =

distance from land > 12 nautical miles

X   X X  
 
.2 =

ship’s speed > 7 knots

X   X X  
 
.3 =

water depth > 25 metres

X   X X  
 
.4 =

Using underwater discharge (not exceeding permissible discharge rate)

X   X    
8 Conditions for discharge of ballast:          
 
.1 =

distance from land > 12 nautical miles

  X      
 
.2 =

water depth > 25 metres

  X      
9 Any water subsequently introduced into a tank may be discharged into the sea without restrictions X X X X X

Addendum B - Prewash Procedures

  This addendum to the Manual shall contain prewash procedures based on appendix 6 of Annex II. These procedures shall contain specific requirements for the use of the tank washing arrangements and equipment provided on the particular ship and include the following:

  • .1 cleaning machine positions to be used;

  • .2 slops pumping out procedure;

  • .3 requirements for hot washing;

  • .4 number of cycles of cleaning machine (or time); and

  • .5 minimum operating pressures.

Addendum C - Ventilation Procedures

  This addendum to the Manual shall contain ventilation procedures based on appendix 7 of Annex II. The procedures shall contain specific requirements for the use of the cargo tank ventilation system, or equipment, fitted on the particular ship and shall include the following:

  • .1 ventilation positions to be used;

  • .2 minimum flow or speed of fans;

  • .3 procedures for ventilating cargo pipeline, pumps, filters, etc.; and

  • .4 procedures for ensuring that tanks are dry on completion.

Addendum D - Additional Information and Operational Instructions Required or Accepted by the Administration

 
Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.