Introduction General Glossary Warnings Assistance Anchoring Arrival, Berthing, and Departure Course Draught and Air Draught Fairway Navigation Canal and Lock Operations Manoeuvring Pilotage Position Radar Navigational Warnings Routeing Speed Tide and Depth Tropical Storms Tugs Way Points Weather Fishing Helicopters Ice-breakers Wheel Orders Engine Orders Pilotage (On-board) Manoeuvring (On-board) Propulsion System Going To Anchor Leaving The Anchorage Berthing / Unberthing	Standard Marine Navigational Vocabulary
	Ice-breakers
	If there is more than one vessel being assisted, ice-breaker commands concerning all the vessels in a convoy are to be immediately obeyed and repeated consecutively by each vessel in turn. Ice-breaker commands applying to a single vessel is a convoy are repeated only by that vessel. When being assisted by an ice-breaker it is important to keep a continuous listening watch on the appropriate radiotelephone frequency and to keep a proper lookout for sound and visual signals.
	ICE-BREAKER ASSISTED VESSEL(S) Attention Attention all vessels Attention vessel . . . Attention vessel . . . listening Attention . . . (convoy number) listening. Ice-breaker assistance is now coming (I will arrive in . . . hours). Okay. Ice-breaker assistance is now coming (You will arrive in . . . hours) Ice breaker assistance is now commencing (Keep a continuous radiotelephone listening watch) (Your place in the convoy is . . .) (You will be followed by vessel . . .) Okay. Ice-breaker assistance is now commencing (I am keeping a continuous radiotelephone listening watch) (My place in the convoy is . . .) (I will be followed by vessel . . .). Go ahead; (follow me). I am going ahead. (I am following you). Proceed along the ice channel. I am proceeding along the ice channel. Do not follow me; Stop - Reason may be given. I will not follow you. I am stopping. Do not follow me. Proceed along the ice channel. I will not follow you; I will proceed along the ice channel. Slow down. - Reason may be given. I am slowing down. Increase you speed. Increase your engine power. - Reason may be given. I am increasing my speed. I am increasing my engine power. Reverse your engine . . . (slow astern) (half astern) (full astern). I am reversing my engine . . . (slow astern) (half astern) (full astern). Full ahead immediately. I am going full ahead immediately. Stop your vessel immediately. - Reason may be given. I am stopping my vessel immediately. Keep a distance of . . . cables/metres between vessels. I will keep a distance of . . . cables/metres between vessels. Shorten the distance between vessels to . . . cables/metres. I am shortening the distance between vessels to . . . cables/metres. Increase the distance between vessels to . . . cables/metres. I am increasing the distance between vessels to . . . cables/metres. Prepare to receive tow line. I will prepare to receive tow line. Prepare to cast off tow line. I will prepare to cast off tow line. Be ready to receive tow line. Be ready to cast off tow line. I am ready to receive tow line. I am ready to cast off tow line. Stop vessel to receive tow line. I will stop and receive tow line. Stop vessel to cast off tow line. I will stop and cast off tow line. Ice-breaker assistance is suspended.* Okay. Ice-breaker assistance is suspended.* Stay where you are. I will stay where I am. Switch on bow searchlight. Switch on stern searchlight. I will switch on bow searchlight. I will switch on stern searchlight. Ice-breaker . . . assistance is finished. Reason . . . (There is open water ahead) (There is light ice condition ahead) (Proceed by yourself) (Ice-breaker . . . will assist you in further navigation) (Proceed by yourself to an area . . .) (Ice-breaker . . . will meet and escort you). Thank you, Okay. Ice-breaker . . . assistance is finished. Reason . . . (There is open water ahead) (There is light ice condition ahead) (I will proceed by myself) (Ice-breaker . . . will assist me in further navigation) (I am proceeding by myself to an area . . .) (Ice-breaker . . . will meet and escort me).
	* Note: Reason/time may be given.