Vessel Requirements
Lamps requirements by vessel length.
For vessels less than 50 metres in length overall, IMO COLREG 72 describes the following
minimum visible distances for navigation lamps. Distances are in Nautical Miles.
Supplementary national approvals may also apply.
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Vessels 0-12 metres / 0-40 feet in length: |
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White, Red, Green All Round lamps, 2 miles |
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Vessels 12-20 metres / 40-65 feet in length: |
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White, Red, Green All Round lamps, 2 miles |
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Vessels 20-50 metres / 65-150 feet in length: |
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White, Red, Green All Round lamps, 2 miles |
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IMO COLREG 72 Lights and Visibility - Powerboats
IMO COLREG requirements for navigation lighting on powerboats less than 50m LOA (Length Overall).
Note - Sailboats under motor adopt the rules for Powerboats.
| Powerboats up to 7m. Max 7 knots | Powerboats up to 12m where Masthead and Stern lamps cannot be mounted | Powerboats up to 12m where Masthead and Stern lamps cannot be mounted | ||
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| 1 All Round White lamp | 1 All Round White lamp 1 Port lamp 1 Starboard lamp |
1 All Round White lamp 1 Bi-Colour lamp |
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| Powerboats up to 20m | Powerboats up to 20m | Powerboats up to 50m | ||
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| 1 Masthead lamp 1 Port lamp 1 Starboard lamp 1 Stern lamp |
1 Masthead lamp 1 Bi-Colour lamp 1 Stern lamp |
1 Masthead lamp 1 Port lamp 1 Starboard lamp 1 Stern lamp |
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| A vessel less than 50m engaged in trawling |
A vessel less than 50m engaged in fishing, other than trawling |
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| 1 All Round Green lamp 1 All Round White lamp mounted above one another |
1 All Round Red lamp 1 All Round White lamp mounted above one another |
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| Powerboats towing with a tow length of less than 200m |
A vessel engaged in diving operations | A vessel engaged in pilotage duty | ||
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| In addition to Port, Starboard and Stern lamps 1 Towing lamp mounted above the stern lamp 2 Masthead lamps in a vertical line (When the tow length exceeds 200m, three Masthead lamps in a vertical line) |
1 All Round Red lamp 1 All Round White lamp 1 All Round Red lamp mounted above one another |
In addition to Port, Starboard, Masthead and Stern lamps 1 All Round White lamp 1 All Round Red lamp mounted above one another |