ShieldBuff, a chevronels enhanced Vert between two cogwheels Sable each enclosing a cross throughout Gules, and a demi-spear issuing from base Proper.
CrestThat for the regiments and separate battalions of the Texas Army National Guard: From a wreath Argent and Buff, a mullet of the first encircled by a garland of live oak and olive Proper.
ShieldBuff and scarlet are the colors traditionally associated with Support units. Supply functions are represented by buff; the red crosses reflect the medical support mission of the unit. The black cogwheels allude to maintenance. The chevronels, symbolizing support and strength, and the demi-spear, alluding to the forward support mission of the unit, underscore the unit's motto and emphasize the vital role of a support unit in maintaining total military preparedness.
CrestThe crest is that of the Texas Army National Guard.
The coat of arms was originally approved for the 372d Support Battalion on 13 November 1989. It was redesignated effective 1 September 2008, for the 636th Support Battalion.