ShieldPer pale Azure and Sable a lion rampant Or, on a canton Argent a chevron wavy of the first.
CrestOn a wreath Or and Azure two hunting horns in saltire Or, inserts Argent, mouthpieces Gules and straps interlaced Sable buckled of the first.
ShieldThe colors blue and white are used for Infantry. Black and gold are the colors of the Belgian coat of arms from which the Belgian lion is adapted. The wavy chevron on the canton is for descent from the 9th Infantry. The Belgian lion represents the organization's action at Ardennes and St. Vith, for which it was awarded two unit decorations by the Belgian government.
CrestThe crest, consisting of Teutonic hunting horns, alludes to the German battle honors of World War II.
The coat of arms was originally approved for the 48th Infantry Regiment on 3 February 1921. It was redesignated for the 48th Armored Infantry Regiment on 19 May 1942. The insignia was redesignated for the 48th Armored Infantry Battalion on 30 November 1943. It was redesignated for the 48th Infantry Regiment and amended by the addition of a charge to and modification of the shield and a crest on 14 October 1958.