The OOW should notify the master immediately:
If restricted visibility is encountered or expected
If traffic conditions or the movements of other ships are causing concern
When changing over the watch relieving officers should personally satisfy themselves regarding the following:
Standing orders and other special instructions of the master relating to the navigation of the ship
Position, course, speed and draught of the ship
NAVIGATION IN ICE
Have the master, engine room and crew been informed of the ice conditions?
Have watertight doors been shut, as appropriate?
Has speed been moderated?
Has the frequency of sounding tanks and bilges been increased?
Have instructions been issued on the following matters?
Monitoring ice advisory service broadcasts
Transmitting danger messages in accordance with SOLAS
Has the following equipment been checked to ensure that it is fully operational?
Radar, ARPA or other plotting facilities
VHF
Fog signaling apparatus