Navigational Lighting Requirements
For vessels less than 50 metres in length overall, IMO COLREG 72 describes the following minimum visible distances for navigation lamps.Supplementary national approvals may also apply. Distances are in Nautical Miles.
Vessels less than 12 metres in length:
White, Red, Green All Round lamps, 2 miles
Masthead lamp, 2 miles
Port and Starboard lamps, 1 mile
Stern lamp, 2 miles
Tri-colour lamp, 2 miles. (Sailing vessels under sail only)
Vessels less than 20 metres in length:
White, Red, Green All Round lamps, 2 miles
Masthead lamp, 3 miles
Port and Starboard lamps, 2 miles
Stern lamp, 2 miles
Tri-colour lamp, 2 miles. (Sailing vessels under sail only)
Vessels less than 50 metres in length:
White, Red, Green All Round lamps, 2 miles
Masthead lamp, 5 miles
Port and Starboard lamps, 2 miles
Stern lamp, 2 miles
Vessels less than 12 metres in length:
White, Red, Green All Round lamps, 2 miles
Masthead lamp, 2 miles
Port and Starboard lamps, 1 mile
Stern lamp, 2 miles
Tri-colour lamp, 2 miles. (Sailing vessels under sail only)
Vessels less than 20 metres in length:
White, Red, Green All Round lamps, 2 miles
Masthead lamp, 3 miles
Port and Starboard lamps, 2 miles
Stern lamp, 2 miles
Tri-colour lamp, 2 miles. (Sailing vessels under sail only)
Vessels less than 50 metres in length:
White, Red, Green All Round lamps, 2 miles
Masthead lamp, 5 miles
Port and Starboard lamps, 2 miles
Stern lamp, 2 miles
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