Shield
Sanguine, on a pile Argent a canoe paddle (Pacific Islands type) palewise blade to chief entwined by two serpents aspectant, the dexter a python (Molurus) and the sinister a sea serpent (Pelamis bicolor) all Proper.
Crest
On a wreath of the colors Argent and Sanguine, a triangle Gules with apex to chief charged with a radiant sun Or and issuant from the triangle to dexter and to sinister two tiger heads in front of a wreath of bamboo.
Motto
MEDICAL EXCELLENCE.
Shield
Maroon and white are the colors traditionally associated with the Medical Corps, the predecessor organization. The pile represents a triangular bandage. The Solomon Islands canoe paddle symbolizes service in that area. The python, indicating service in the Philippines, is a species indigenous to that area. The sea serpent is of a type found throughout the Central Pacific; all elements being representative of the former unit's service.
Crest
The triangle and radiant sun, adapted from the seal of the President of the Philippines, symbolize the award of the Philippine Presidential Unit Citation for service in that country during World War II. The tigers' heads, representing a native Korean animal of symbolic importance, signify the unit's two awards of the Republic of Korea Presidential Unit Citation. The wreath of bamboo recalls the Meritorious Unit Commendation awarded the 25th Medical Battalion for service in Korea.
The coat of arms was originally approved for the 25th Medical Battalion on 6 August 1953. It was amended to add a crest and motto on 1 March 1966. The insignia was redesignated for the 325th Support Battalion with the symbolism revised on 18 March 1991.