Shield
Vert, on a pale of billets fesswise Or, a triangle Sable fimbriated of the second and charged with a fleur-de-lis of the like.
Crest
That for the regiments and separate battalions of the Louisiana Army National Guard: On a wreath of the colors Or and Vert, a pelican in her piety affront with three young in nest, Argent, armed and vulned Proper.
Motto
FIRST TO FIGHT.
Shield
Green and yellow (gold) are colors used for Armor units. The rectangular yellow bars simulate the treads of an armored vehicle. The black triangle bearing the gold fleur-de-lis alludes to the state of Louisiana and the rich land areas of this delta-state, the present location of the 156th Armor.
Crest
The crest is that of the Louisiana Army National Guard.
The coat of arms was approved on 20 October 1977.