Shield
Per chevron enhanced Or (Golden Yellow) and Azure (Cobalt Blue), in chief five mullets chevronwise of the second, in base a dragon rampant reversed Vert fimbriated and garnished of the first, armed and langued Gules with eye and tail barb of the like; superimposed across the dragon's hind legs two artillery shells saltirewise of the first with the one in bend garnished with three bands on its base of the third.
Crest
From a wreath Or (Golden Yellow) and Azure (Cobalt Blue) issuant out of the battlements of a tower of the first, a gauntlet Argent (Silver Gray) grasping a double-headed spear bend sinisterwise of the first.
Motto
UTMOST.
Shield
Cobalt blue and golden yellow are the colors associated with the Army Chemical Corps. The chevron configuration, alluding to a mountain, represents mountainous areas of Okinawa and Fort Lewis where the unit served. The dragon, symbol of strength and vigilance, and the artillery shells symbolize the unit's operation to combat weapons of mass destruction (WMD). The shell with the three green bands symbolizes chemical agent-filled munitions and the unmarked shell is for the unknown threat. The dragon over crossed shells is derived from the original insignia for the First Gas Regiment. The stars commemorate the organization's five campaign credits for Europe during World War II as the 33rd Chemical Company and their current missions: Chemical, Biological, Radiological, Nuclear and High-yield Explosives (CBRNE) response.
Crest
The gauntlet represents the unit's strength and readiness to fight both the known and unknown enemies of freedom. The gauntlet also characterizes protection, a vital component of the Chemical Battalion's capabilities. The gauntlet grasping a double-headed spear represents the dual nature of the battalion's mission, supporting both combatant commanders while also supporting Homeland Defense. The double-head spear also highlights the nature of the organization as the one at the forefront in CBRNE hazard identification and characterization. The tower refers to the World War II service credits in Europe with the merlons representing the five campaign credits earned there.
The coat of arms was approved on 28 March 2006.