Following the formal Surrender of Japan 2 September, "YMS-376" steamed to Japan 8 to 10 September and began sweeping for coastal mines out of Sasebo. During the next 5 months she cleared mines from the coasts of Honshū and Kyūshū and in the Inland Sea. On 16 February 1946 she departed Kobe for the United States. Sailing via the Marshall Islands and Hawaiian Islands, she touched San Francisco, California 1 April and reached San Diego, California the 9th. "YMS-376" decommissioned there 5 June 1946 and entered the Pacific Reserve Fleet. While in reserve at San Diego, she was named "Lark" and reclassified "AMS-23" on 17 February 1947.