CONVENTIONAL DESIGNATIONS OF SHIP LIGHTS Appendix 1 Unbroken light, visible clear around the horizon (white lights indicated in yellow) Unbroken light, visible in certain sectors Flashing signal Light sector of unbroken lights Light sector of intermittent lights Additional lights (not required) Representation of lights on a vertical Notes: 1. The indicated visibility ranges of the lights (in miles) must be understood as visibility ranges not less than the indicated number of miles. 2. The absence, in diagrams depicting the location of lights, of data on illumination sectors and visibility range of a light indicates that there are no strictly defined limits for the illumination sectors or visibility range for this light in the International Regulations for Preventing Collisions at Sea. |