COLREG Rule 34 Signals To Attract Attention

Extract from RULE 36 Signals to attract attention If necessary to attract the attention of another vessel any vessel may make light or sound signals that cannot be mistaken for any signal authorized elsewhere in these Rules. or may direct the beam at her searchlight in the direction or the danger. in such a way as not to embarrass any vessel. Any light to attract the attention of another vessel shall be such that it cannot be mistaken for any aid to navigation. For the purpose of this Rule the use at high intensity intermittent or revolving lights. such as strobe lights. shall be avowed.