The US Coast Guard issued a Safety Alert stating that it has withdrawn the Certificate of Approval for NAMMO LIAB AB Orange Smoke Hand Distress Signal, alternately labeled as Polar MK 4 by NAMMO LIAB AB or as IKAROS by Hansson Pyrotech. This action was taken because the chemical makeup of the signal was changed in October 2013 without Coast Guard approval and the signal as subsequently manufactured is at risk of spontaneous combustion if dropped. Safety Alert 04-16

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