10:45 2017-08-18 Factory Mutual Global Insurance Company FM Glogal Loss Prevention and Data sheets FMG stamp is a HIGHER standard than eiter NFPA or UL (Underwriters Laboratories) FMGlobal AKA Factory Mutual, is a Wordwide (Global) insurance Company If you want to be insured by them you have to comply with their higher specification requirement. It is similar to Llyod's of London, who insures AIG