The Task Group on Halon Options of the International Aircraft Systems Fire Protection Working Group has reviewed and assessed Halon substitution technologies for each major area of on-board aircraft use: (1) engine nacelles, (2) handheld extinguishers, (3) cargo compartments, and (4) lavatory protection. The technical report Options to the Use of Halons for Aircraft Fire Suppression Systems - 2012 Update prepared by this task group can be found here.