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
	Navigational Warnings
	There is a dangerous wreck in position . . . (marked by . . . showing . . .). There is a dangerous rock in position . . . (marked by . . . showing . . .). There is a dangerous shoal in position . . . (marked by . . . showing . . .). There is a drifting mine reported in position . . . There is a gas leakage (from fractured pipeline) in position . . . There is a slick of oil in position . . . (extending . . .). There are pipe-laying operations in position . . . There are cable-laying operations in position . . . There are salvage operations in position . . . There are oil clearance operations in position . . . There are tankers transferring . . . in position . . . There are current meters moored in position . . . There are oceanographic instruments moored in position . . . There is a derelict adrift in position . . . (at . . . hours). There is a vessel with a difficult tow on passage from . . . to . . . There is a drilling rig . . . (name) established in position . . . There is an offshore installation . . . (name) established in position . . . There is a . . . buoy in position . . . unlit. There is another mark in position . . . unlit. There is a . . . buoy in position . . . off station. There is another mark in position . . . off station. There is a . . . buoy (showing . . . ) established in position. There is another mark (showing . . . ) established in position. There is a . . . light in position . . . now showing . . . There is a buoy in position . . . now showing . . . There is another mark in position . . . now showing . . . There is a vessel carrying out hydrographic survey in position . . . There is a vessel carrying out seismic survey in position . . . There is a vessel carrying out hydrographic survey in area . . . There is a vessel carrying out seismic survey in area . . . Abnormally low tides expected in . . . at . . . hours. Abnormally low tides expected in . . . around . . . hours. Decca Chain . . . red transmissions interrupted at . . ., check all lane numbers. Decca Chain . . . green transmissions interrupted at . . ., check all lane numbers. Decca Chain . . . purple transmissions interrupted at . . ., check all lane numbers. Vessels must keep clear of this area. Vessels must keep clear of area indicated. Vessels must avoid this area. Vessels must avoid area indicated. Vessels are advised to keep clear of this area. Vessels are advised to avoid this area. Vessels must navigate with caution. There is a vessel not under command in position . . . There is a vessel not under command in area . . . There is a hampered vessel in position . . . There is a hampered vessel in area . . . Radio beacon service . . . has been discontinued. Advise you keep clear of sea area . . . search and rescue in operation. Route . . . has been suspended. Traffic lane . . . has been suspended. Route . . . has been discontinued. Traffic lane . . . has been discontinued. Route . . . has been diverted. Traffic lane . . . has been diverted.