The destroyer completed the year's competitive exercises in May and was occupied with rocket and missile firings in June. She participated in the development acceptance program incident to Polaris missile firings for the submarine off Cape Kennedy. During this period, "Wallace L. Lind" hosted the Commander in Chief, Atlantic Fleet and Commander, Submarine Force, Atlantic Fleet as observers of the launches. She also hosted the Secretary of Defense, the Secretary of the Navy, and the Chairman of the Joint Chiefs of Staff. "Lind" became the first operationally qualified DASH destroyer in the Atlantic Fleet during trials in July 1963.