Shield
Vair, a chief nebuly Gules.
Crest
That for the regiments and separate battalions of the New York Army National Guard: On a wreath of the colors Argent and Azure, the full-rigged ship "Half Moon" all Proper.
Motto
PRO PATRIA (For Country).
Shield
The shield of vair represents the allocation of the Regiment to southern New York, as fur constituted a great part of the early trade of this state. Vair originated from the fur of a kind of squirrel (the vair) which was bluey-gray upon the back and white underneath. The red chief is for Artillery and the nebuly partition line is the heraldic symbol for clouds, the field of antiaircraft fire.
Crest
The crest is that of the New York Army National Guard.
The coat of arms was originally approved for the 212th Coast Artillery Regiment on 29 November 1927. It was redesignated for the 773d Antiaircraft Artillery Gun Battalion on 21 August 1952. It was redesignated for the 773d Antiaircraft Artillery Battalion on 25 March 1958. The insignia was redesignated for the 212th Artillery Regiment on 3 April 1962.