The shoulder sleeve insignia was originally approved on 21 Oct 1954 for The Armored School. It was redesignated for The Armor School on 26 Jun 1956. The insignia was amended on 16 Jul 1957 to change the wording in the description of the tab. On 3 Dec 1964 the insignia was redesignated for the U.S. Army Armor School. The shoulder sleeve insignia was amended on 5 Nov 1970 to revise the design to make the insignia and tab one piece. (TIOH Dwg. No. A-1-397)