This maritime sign is used by mariners to provide adequate signage on board vessels. Furthermore, some flag states and regulatory organizations require maritime signs on board to be in compliance with the maritime governing regulations. Maritime signs are critical in keeping a vessel's crew safe of any possible hazards, all safety equipment easy to mark, and provide directions on board a vessel.

Lifebuoy with light line with text. Conforms to IMO resolution A.1116(30) in force 1st January 2019. IMO LSS008 ISO 7010-E043 IMPA Code 33.X134 ISSA Code 47.549.34