Per bend wavy Buff and Azure, on the first a cornucopia, on the second a broken classic column Argent.
On a wreath of the colors, Argent and Buff, a millrind Argent enfiled by a key wards up Gules, all within a wreath of wheat Vert.
SUPPLY MOBILITY SERVICE.
The colors buff and blue, for the Quartermaster Corps, refer to the predecessor organization. The cornucopia, a symbol of abundance, represents the supply function of the battalion as a supply and transport unit. The classic column denotes the organization's World War II campaign honors in North Africa and Italy.
Red, white and green are the Italian colors and underscore the unit's World War II service. The millrind refers to strength and support, the key and wheat allude to traditional quartermaster functions and the wreath denotes honor and achievement.
The coat of arms was originally approved for the 1st Quartermaster Battalion on 26 March 1953. It was redesignated for the 501st Supply and Transport Battalion on 13 March 1962. It was again redesignated for the 501st Support Battalion with symbolism amended on 31 July 1987. The coat of arms was amended to add a crest on 1 May 1990.