Or, a boot bendwise Crimson between six fleurs-de-lis, two and one and one and two, Azure.
That for the regiments and separate battalions of the Pennsylvania Army National Guard: On a wreath of the colors, Or and Crimson, a lion rampant guardant Proper, holding in dexter paw a naked scimitar Argent hilted Or and in sinister an escutcheon Argent on a fess Sable three plates.
SERVICE ON TIME.
Crimson and yellow are colors traditionally associated with Ordnance, the original unit. The boot alludes to Italy and represents the parent Battalion's World War II campaigns, the majority of which were in Italy. The six fleurs-de-lis, symbols of France, indicate the original unit's World War I battle honors.
The crest is that of the Pennsylvania Army National Guard.
The coat of arms was originally approved for the 728th Ordnance Battalion on 3 May 1954. It was redesignated for the 728th Maintenance Battalion on 7 February 1967. The insignia was redesignated for the 728th Support Battalion with the blazon and symbolism revised on 27 March 1992.