Casey had intended to come ashore on the first day of the landing at Lingayen Gulf in January 1945 but was delayed a day because the destroyer he was traveling on had to escort a crippled transport. Despite enormous difficulties ASCOM was able to finish numerous projects on time and some ahead of schedule. On 13 February 1945, ASCOM was transferred to USASOS and redesignated the Luzon Base Section (LUBSEC). Casey then resumed his old post, now renamed Chief Engineer, US Army Forces Pacific. For his services as commander of ASCOM, he was awarded the Legion of Merit. He was subsequently awarded a bronze oak leaf cluster to his Distinguished Service Medal for his services as Chief Engineer, US Army Forces Pacific.