The letter “F” in the ERG code means “Flammable” and the letter “Z” means “Aircraft cargo fire suppression system may not extinguish or contain the fire. Consider landing immediately”. At the 24th meeting of the ICAO DGP (Dangerous Goods Panel) held in Montreal on 28 Oct. through 8 Nov. 2013, this subject was discussed. Halon was shown to be ineffective in suppressing a lithium metal fire, but it was effective in suppressing a lithium ion fire and preventing the spread of fire to adjacent combustible material. It was suggested that lithium ion fires were similar to flammable fires and therefore the Drill Code “9F” would be more appropriate. Supporting opinions were that it will facilitate transport and provide comfort to the flight crew in knowing that they had batteries on board that could be dealt with in the event of a fire. Those against were insisting that the absence of letter “Z” will eliminate the value of water as the best agent. Majority agreed that “9F” was more appropriate. For lithium metal fires, “9FZ” was retained.