Shield
Azure, a pale bretessed and double-parted Argent surmounted by a gauntlet closed, palm inward Argent (Silver Gray), edged of the first, charged on the sleeve with two mullets in pale Gules; on a chief of the last, ajourn Argent, a bowie knife fesswise, point to dexter Argent (Silver Gray).
Crest
That for the regiments and separate battalions of the Mississippi Army National Guard: From a wreath Argent and Azure, a slip of magnolia full flower with leaves Proper behind a trident Sable.
Motto
HONOR IS OUR STRENGTH.
Shield
Red, white and blue are the nations colors and the colors of the Mississippi flag. The pale parted suggests railroad tracks, denoting the City of Meridian, which was founded at the junction of several railroad lines and the home state of the Brigade. The gauntlet represents strength and symbolizes the call sign used by the Headquarters, Knight. The stars signify the Battalions combat deployment during World War II and Operation Iraqi Freedom. The chief with the separations illustrates the battlements of a castle and suggests the former Special Troops Battalions lineage to the 150th Engineer Battalion. The four merlons commemorate the four soldiers of the 150th Engineer who lost their lives during Operation Iraqi Freedom: MSG Sean Cooley, SGT Robert McNail, SSG Larry Arnold and SGT Terrence Lee. The bowie knife indicates the former Battalions association to the 155th Armored Brigade Combat Team.
Crest
The crest is that of the Mississippi Army National Guard.
The coat of arms was originally approved for the Special Troops Battalion, 155th Armored Brigade Combat Team on 18 April 2008. It was redesignated effective 5 October 2016, for the 150th Engineer Battalion with the symbolism updated.