Maritim IMO sings photoluminiscent: safety sings, exit safety signs, direction sings, fire signs, direction signs, probihition signs, mandatory signs, warning and hazard signs.
SOLAS, Chapter III, Regulation 20.10 requires signs to identify the locations of life saving equipment in accordance with recommendations of IMO. Reference should be made to the symbols related to Life Saving Appliances and arrangements adopted by IMO by resolution A.760 (18), MSC82 (70) and A.952 (23).
MSC / Circ. 777 advises that "Assembly station" has the same meaning as "Muster station".
The standard IMO designs may be used without text. This format will be preferred where English is not the first language of the passengers and crew.