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A vessel engaged in mine clearance operations at anchor - lights

  • Description of scenario: Type of vessel: Vessel engaged in mine clearance operations of more than 50 m in length but less than 100 m in length at anchor
    Time of the day: From sunset to sunrise and from sunrise to sunset in restricted visibility
  • Rule(s) to be applied: Rule 27 (Vessels not under command or restricted in their ability to manoeuvre)
    Rule 30 (Anchored vessels and vessels aground)
  • Applying the Rule(s) and comments: In accordance with Rule 27 (f) (Vessels not under command or restricted in their ability to manoeuvre), a vessel engaged in mine clearance operations shall in addition to the lights prescribed for a vessel at anchor in Rule 30 (Anchored vessels and vessels aground), exhibit three all-round green lights. One of these lights shall be exhibited near the foremast head and one at each end of the fore yard. These lights indicate that it is dangerous for another vessel to approach within 1000 m of the mine clearance vessel.
    In accordance with Rule 30 (a) (Anchored vessels and vessels aground), a vessel at anchor shall exhibit where it can best be seen:
    (i) in the fore part, an all-round white light;
    (ii) at or near the stern and at a lower level that the light prescribed in subparagraph (i), an all-round white light.
  • Lights positions:

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This project has been funded with support from the European Commission.This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.