Shield
Per bend Or and Gules sideview of locomotive from the sinister counterchanged.
Crest
That for the regiments and separate battalions of the Army Reserve: On a wreath of the colors Or and Gules, the Lexington Minute Man Proper. The statue of the Minute Man, Captain John Parker (H.H. Kitson, sculptor), stands on the common in Lexington, Massachusetts.
Motto
EQUITES FERRI (Iron Horsemen).
Shield
The colors brick red and yellow are for the Transportation Corps. The locomotive symbolizes the functions of the organization.
Crest
The crest is that of the United States Army Reserve.
The coat of arms was originally approved for the 729th Transportation Railway Operating Battalion on 8 February 1952. It was redesignated for the 729th Transportation Battalion on 6 September 1960.