 She operated in the Marshall Islands until 30 June when she cleared for duty in the Eleventh Naval District from San Pedro, California.On 23 July 1946 she sailed for Astoria, Oregon, where she was decommissioned and placed in reserve 21 October 1946.With the buildup of the fleet brought into effect upon the outbreak of hostilities in Korea, "Catalpa" was re-commissioned 7 August 1950 and reported to the net depot in San Francisco Bay for training and local duty.