Caveat

CAVEAT 1.
This site ONLY works for the process of going from “type of vessel” to “lights (or shapes/sounds) displayed”. So if you are interested in (say) Power Vessels under 20 metres, then go to that section and you will see the lights they can display.   However, those lights may well be common to many other vessels but these other vessels will not be displayed in the “Under 20 Metre Power” section.

CAVEAT 2.
It is also true to say that vessels do not need to show the lights I have shown!  Whilst this sounds a bit silly, a 20 metre power vessel may decide to use the lights for a 50 metre power vessel; it would be quite legal and within the rules.  Don’t blame me - I didn’t make the rules.

42over50pushing-port
40over50over200tow-port02

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