Seaman's Handbook

ANNEX II. Additional signals for vessel fishing in close proximity

The lights mentioned herein shall, is exhibited in pursuance of Rule 26 (d), be places where they can best be seen. They shall be at least 0.9 metres apart but at a lower level than lights prescribed in Rule 26 (b) (i) and (c) (i). The lights shall be visible all round the horizon at a distance of at least 1 mile but at a lesser distance then the lights prescribed by these Rules for fishing vessels.