Rule 27(b)(i) – Vessels not under command or restricted in their ability to manoeuvre
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Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC.1/Circular.1260 Rev.1 – Unified Interpretations of COLREG 1972, as Amended – (23 May 2014) - Annex – Unified Interpretations of COLREG 1972, as Amended - Rule 27(b)(i) – Vessels not under command or restricted in their ability to manoeuvre

Rule 27(b)(i) – Vessels not under command or restricted in their ability to manoeuvre

 "Not under command" (NUC) all-round red lights (Rule 27(a)(i)) may be used as part of the "Restricted Ability to Manoeuvre" (RAM) lights provided the vertical and horizontal distances required by COLREG 1972 are complied with and the electrical system is arranged so that the all-round white light (RAM) may be switched on independently from the two all-round red lights (NUC).


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