Clause 12 Manoeuvring light
Maritime Rules Part 22: Collision Prevention
(1) The manoeuvring light described in rule 22.34(2) must be placed in the same fore and aft vertical plane as the masthead light or lights.
(2) Where practicable, it should be at a minimum height of 2 metres vertically above the forward masthead light, provided that it is carried at least 2 metres vertically above or below the after masthead light.
(3) On a vessel where only one masthead light is carried, the manoeuvring light, if fitted, must be carried where it can best be seen, at least 2 metres vertically apart from the masthead light.