The International Regulations for Preventing Collisions at Sea 1972 (“COLREGS”), as amended, provides general rules to be followed in order to avoid collisions at sea where good seamanship should complement these rules. There has been a significant number of collisions where misuse of VHF radio equipment and AIS information has been established to be a contributory factor. The COLREGS, however, does not specify exactly the role of VHF and other navigational aids, other than the use of ‘all avail

INTERNATIONAL NAVIGATION LIGHTS & SHAPES - TUTORIAL VIDEO - SAFETY AT SEA Lights and shapes are used to indicate the status of a vessel at sea and the direction in which a vessel underway is moving, to allow the correct action to be taken by all the vessels when in sight of each other. The International Regulations for Preventing Collisions at Sea (COLREGs) not only prescribe the actions of each vessel in all states of visibility, they also stipulate the lights that should be fitted to a vessel,