ShieldVert, on a pedestal a representation of the Greek mythological god, Atlas, supporting on his shoulder a globe Argent.
CrestOn a wreath of the colors Argent and Vert, in front of a pair of double open-end wrenches crossed in saltire Or, a spearhead Proper with a flory at the top divided per pale Gules and of the second.
MottoMAINTIEN LE DROIT (Support The Right).
ShieldThe figure of Atlas supporting the globe is symbolic of the maintenance functions of the organization in that the globe is an allusion to the extreme weight of armored vehicles which the Battalion services and repairs. The motto is a further reference to the unit's maintenance mission, and is representative of the original service of the organization.
CrestThe crest commemorates through the spearhead and fleur-de-lis the Battalion's World War II service in France and Europe as an element of the 3d Armored Division (the Spearhead Division). The two wrenches are symbolic of the maintenance mission and the colors scarlet and green refer to the Meritorious Unit Commendation and the Belgium Fourragere awarded during that period.
The coat of arms was originally approved for the 3d Armored Division Maintenance Battalion on 28 September 1942. It was redesignated for the 122d Armored Ordnance Maintenance Battalion on 16 December 1949. It was redesignated for the 122d Ordnance Battalion on 15 July 1958. The insignia was redesignated for the 122d Maintenance Battalion on 6 March 1964. It was amended to add a crest on 4 November 1974. It was amended to revise the symbolism of the shield on 19 August 1977. It was redesignated for the 122d Support Battalion with the symbolism revised on 1 May 1987.