Shield
Or a pile bendwise Gules and overall a horse courrant Argent, on a chief Azure a mullet of the third.
Crest
That for the regiments and separate battalions of the Nevada Army National Guard: From a wreath Or and Gules, within a garland of sagebrush a sledge and miners drill crossed in saltire behind a pickax in pale Proper.
Motto
NEVER BROKEN.
Shield
Red and gold connote the Spanish heritage of Nevada and the branches of the Armor-Cavalry and Artillery in which the 221st and its antecedents have served. The red pile symbolizes the blast trail of an Artillery rocket. The 221st served as one of the very few Rocket Artillery organizations in the US Army, during World War II. The mustang, noted for hardiness, descended from the Spanish Conquistadors Warhorses, is native to the State of Nevada and symbolizes a combat maneuver unit. The star is from the Nevada State Flag and the colors blue and silver (white) are the state colors.
Crest
The crest is that of the Nevada Army National Guard.
The coat of arms was originally approved for the 221st Armor Regiment on 18 September 1981. It was redesignated for the 221st Cavalry Regiment on 10 December 1997.