The saltire, drawn from the cross of St. Andrew, represents sacrifice. The annulet is symbolic of complete control. The gold star represents authority while the black disc refers to prudence and wisdom. Green and yellow (gold) are colors used for Military Police units.

The distinctive unit insignia was originally approved for the 156th Military Police Battalion on 6 June 1975.  It was redesignated effective 1 September 1981, for the 231st Military Police Battalion.  The symbolism was amended 14 July 2023.

Vert, a saltire couped urdée Or charged with a gunstone bearing a mullet of the second and debruised by an annulet of the first fimbriated yellow.

That for regiments and separate battalions of the Alabama Army National Guard: From a wreath Or and Vert a slip of cotton plant with full bursting boll, Proper.

IN TRUST.

The saltire, drawn from the cross of St. Andrew, represents sacrifice. The annulet is symbolic of complete control. The gold star represents authority while the black disc refers to prudence and wisdom. Green and yellow (gold) are colors used for Military Police units.

The crest is that of the Alabama Army National Guard.

The coat of arms was approved on 20 September 1996. The symbolism was amended 14 July 2023