This additional guidance advises operators on the selection of stern tube lubricants, such as non-toxic biodegradable lubricants or water-based systems, and make structural and engineering suggestions.
Additionally, there is guidance on the application of ballast-water treatment, including taking into account operations of ballast-water management systems in low temperatures, for the prevention of transfer of invasive species.
There is also guidance on anti-fouling coating capability in polar ice operations in order to minimize the risk of invasive aquatic species transfers via biofouling.
For full text of Part II B Additional Guidance see below.
Full Polar Code text
As adopted from IMO - Full Polar Code text
- 1.1 Ships are encouraged to apply regulation 43 of MARPOL Annex I when operating in Arctic waters.
- 1.2 Non-toxic biodegradable lubricants or water-based systems should be considered in lubricated components located outside the underwater hull with direct seawater interfaces, like shaft seals and slewing seals.
Category A and B ships, constructed on or after 1 January 2017 and certified to carry noxious liquid substances (NLS), are encouraged to carry NLS identified in chapter 17, column e, as ship type 3 or identified as NLS in chapter 18 of the International Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in Bulk, in tanks separated from the outer shell by a distance of not less than 760 mm.
Additional guidance to chapter 5
In order to minimize the risks associated with animal cargo mortalities, consideration should be given to how animal carcasses will be managed, treated, and stored on board when ships carrying such cargo are operating in polar waters. Reference is made in particular to the 2012 Guidelines for the implementation of MARPOL Annex V (resolution MEPC.219(63), as amended by resolution MEPC.239(65)) and the 2012 Guidelines for the development of garbage management plans (resolution MEPC.220(63)).
Additional guidance under other environmental conventions and guidelines
- 4.1 Until the International Convention for the Control and Management of Ships' Ballast Water and Sediments enters into force, the ballast water management provisions of the ballast water exchange standard, set out in regulation D-1, or the ballast water performance standard, set out in regulation D-2 of the Convention should be considered as appropriate. The provisions of the Guidelines for ballast water exchange in the Antarctic treaty area (resolution MEPC.163(56)) should be taken into consideration along with other relevant guidelines developed by the Organization.
- 4.2 In selecting the ballast water management system, attention should be paid to limiting conditions specified in the appendix of the Type Approval Certificate and the temperature under which the system has been tested, in order to ensure its suitability and effectiveness in polar waters.
- 4.3 In order to minimize the risk of invasive aquatic species transfers via biofouling, measures should be considered to minimize the risk of more rapid degradation of anti-fouling coatings associated with polar ice operations. Reference is made in particular to the 2011 Guidelines for the control and management of ships' biofouling to minimize the transfer of invasive aquatic species (resolution MEPC.207(62)).
|Year round operation in ice-covered polar waters
|Intermittent operation in ice-covered polar waters||
||Compliant with the AFS Convention. Thickness of anti-fouling system to be decided by shipowner.|
|Category B and C vessels||Compliant with the AFS Convention. Thickness of antifouling system to be decided by shipowner.||Compliant with the AFS Convention. Thickness of anti-fouling system to be decided by shipowner.|
POLAR CODE CHAPTERS:
EXPLANATION AND SUBMISSIONS