Party per fess Azure and Argent, in chief a sun in splendor Or charged with five-bastioned fort of the first, in base a cedar tree eradicated Proper.
On a wreath of the colors Argent and Azure four arrows Sable armed and feathered Gules, tied with a rattlesnake skin Proper.
DUTY.
Blue and white are the colors used for the Infantry. Organized in 1862 as the 2d Battalion, 12th Infantry, the Regiment was in the Army of the Potomac and served in numerous engagements. The cedar tree commemorates the Regiment's baptism of fire at Cedar Mountain, 9 August 1862, where it performed its mission with such success as to receive special mention from General Prince, the brigade commander. The arrows of the crest and the rattlesnake skin, an Indian emblem of war, allude to eight campaigns during the Indian Wars. The five-bastioned fort, the badge of the 5th Corps at Santiago during the war with Spain. The Katipunan sun refers to campaign participation during the Philippine Insurrection.
The coat of arms was approved on 17 Jan 1921.