Chapter 9:

safety of navigation


CHAPTER SUMMARY
Chapter 9 contains measures to provide for safe navigation, including with respect to ships involved in operations with an icebreaker escort and the addition of certain navigational safety equipment. Ships must be able to receive up to date ice information. Additional equipment includes extra requirements for echo-sounding, non-magnetic directional equipment, search lights for detecting ice in darkness and red light signalling when in escort. This equipment must be capable of functioning at low temperatures. These are clearly set out in the Chapter 9 wording below, and in the Part 1B Additional Guidance.

SUBMISSIONS





CHAPTER 9 –  SAFETY OF NAVIGATION:
Full Polar Code text
As adopted from IMO - Full Polar Code text

9.1 Goal
The goal of this chapter is to provide for safe navigation.

9.2 Functional requirements
In order to achieve the goal set out in paragraph 9.1 above, the following functional requirements are embodied in the regulations of this chapter.

9.2.1 Nautical information
Ships shall have the ability to receive up-to-date information including ice information for safe navigation.

9.2.2 Navigational equipment functionality
  • 9.2.2.1 The navigational equipment and systems shall be designed, constructed, and installed to retain their functionality under the expected environmental conditions in the area of operation.
  • 9.2.2.2 Systems for providing reference headings and position fixing shall be suitable for the intended areas.
9.2.3 Additional navigational equipment
  • 9.2.3.1 Ships shall have the ability to visually detect ice when operating in darkness.
  • 9.2.3.2 Ships involved in operations with an icebreaker escort shall have suitable means to indicate when the ship is stopped.
9.3 Regulations
9.3.1 Nautical information
In order to comply with the functional requirement of paragraph 9.2.1 above, ships shall have means of receiving and displaying current information on ice conditions in the area of operation.

9.3.2 Navigational equipment functionality
9.3.2.1 In order to comply with the functional requirement of paragraph 9.2.2.1 above, the following apply:
  • .1 ships constructed on or after 1 January 2017, ice strengthened in accordance with chapter 3, shall have either two independent echo-sounding devices or one echo-sounding device with two separate independent transducers;
  • .2 ships shall comply with SOLAS regulation V/22.1.9.4, irrespective of the date of construction and the size and, depending on the bridge configuration, a clear view astern;
  • .3 for ships operating in areas, and during periods, where ice accretion is likely to occur, means to prevent the accumulation of ice on antennas required for navigation and communication shall be provided; and
  • .4 in addition, for ships ice strengthened in accordance with chapter 3, the following apply:
    • .1 where equipment required by SOLAS chapter V or this chapter have sensors that project below the hull, such sensors shall be protected against ice; and
    • .2 in category A and B ships constructed on or after 1 January 2017, the bridge wings shall be enclosed or designed to protect navigational equipment and operating personnel.
9.3.2.2 In order to comply with the functional requirement of paragraph 9.2.2.2 above, the following apply:
  • .1 ships shall have two non-magnetic means to determine and display their heading. Both means shall be independent and shall be connected to the ship's main and emergency source of power; and
  • .2 ships proceeding to latitudes over 80 degrees shall be fitted with at least one GNSS compass or equivalent, which shall be connected to the ship's main and emergency source of power.
9.3.3 Additional navigational equipment
9.3.3.1 In order to comply with the functional requirement of paragraph 9.2.3.1 ships, with the exception of those solely operating in areas with 24 hours daylight, shall be equipped with two remotely rotatable, narrow-beam search lights controllable from the bridge to provide lighting over an arc of 360 degrees, or other means to visually detect ice.
9.3.3.2 In order to comply with the functional requirement of paragraph 9.2.3.2, ships involved in operations with an icebreaker escort shall be equipped with a manually initiated flashing red light visible from astern to indicate when the ship is stopped. This light shall have a range of visibility of at least two nautical miles, and the horizontal and vertical arcs of visibility shall conform to the stern light specifications required by the International Regulations for Preventing Collisions at Sea.


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