Gules, on a penta-foil Argent a pentagon ensigned at each corner with a fleur-de-lis of the first, charged with a pentagon of the second, bearing a gear Sable.
From a wreath Argent and Gules, a fesse embattled couped reversed of the second surmounted by two sledge hammers in saltire, handles bamboo of eight segments Proper, the hammer head Sable, overall a dagger palewise, point up, hand guard of the third edged of the first, the blade Gris.
Scarlet and white are the colors used for the Engineers, the original unit designation. The penta-foil refers to the five component elements of the Headquarters and Headquarters Detachment, Engineer Battalion (Depot). The pentagon fleury device and gear allude to embattled depot areas and to the organization's five battle honors received in World War II. The motto "Give Way" of the former Engineer Construction Battalion is retained as a historical connection to the present Battalion.
The fesse embattled couped alludes to the operation symbol for Engineers and the unit's past branch affiliation. The three crenels denote the Meritorious Unit Commendations awarded to the battalion for duty in Vietnam. The sledge hammers denote the unit's construction function and each segment of the handles suggest the Vietnam campaign credits. The dagger signifies military readiness.
The coat of arms was approved for the 88th Support Battalion effective 16 September 2007.