On 5 January 1973, "Berkeley" moved to Bremerton, Washington, and, on 12 January, moved into drydock at the Puget Sound Naval Shipyard. The overhaul gave the guided missile destroyer the new tactical data system, a sonar upgrade, new communications and electronic warfare gear, and two new 5-inch gun mounts. After five months in drydock, the warship moved pierside to finish the installations, which were finally completed on 1 November. "Berkeley" then spent the next eight weeks conducting sea trials, including a voyage to Victoria, British Columbia, and a joint exercise with the Canadian Navy.