Naval Mobile Construction Battalion THREE (NMCB 3) is a United States Navy Seabee that was one of the three original Construction Battalions authorized to be formed in 1942. In May 1942 Naval Construction Battalion 3 deployed to the Territory of Hawaii and designated Brigade Headquarters Battalion for the Hawaiian Area NCF. After seeing service in the south Pacific,the battalion was decommissioned mid-1944. In 1950 the battalion was reactivated and today is home-ported at Port Hueneme, California.