The mark consists of a stylized flame positioned between the letters F and D, which are centered beneath the words Protection for the Heat of the Battle and above the words Fire-Dex, all of which are positioned within a shield design having a stars and stripes design beneath the words Fire-Dex at the bottom of the shield.
PROTECTION FOR THE HEAT OF THE BATTLE FD FIRE DEX
Color is not claimed as a feature of the mark.