Thirtieth Naval Construction Regiment Seabees are an integral part of the Naval Construction Force and provide valuable construction support to Navy and Marine Corps units. The Naval Construction Force is an integrated force of both active and reserve units.
Naval Mobile Construction Battalions (NMCB) are the bulk of the active Pacific Naval Construction Force, under the direct command of the Thirtieth Naval Construction Regiment. Each has about 600 officers and enlisted personnel. Their complement includes Civil Engineer Corps officers, other staff officers, enlisted craftsmen from every construction trade and various fleet support ratings.
There are four active Battalions of the Naval Construction Force serving the Pacific, a Construction Battalion Maintenance Unit and an Underwater Construction Team, which provides the Pacific Fleet Seabees with unique underwater construction and demolition capabilities. The Thirtieth Naval Construction Regiment provides deployable command and control of operational units.
Pacific-based Naval Construction Force units deploy to Pacific Fleet and Atlantic Fleet forward logistics support bases in order to provide construction support to Navy, Marine Corps and other organizations. Seabees provide needed construction and repair to military operational and community support facilities, as well as disaster relief and construction training to U.S. communities and independent Pacific Island nations.
The main Pacific deployment sites are Okinawa, Japan; Guam and Iraq. Small details operate in Chinhae, Seoul and Pohang, Korea; Sasebo, Iwakuni, Atsugi, and Yokosuka, Japan; Pearl Harbor, Hawaii; San Diego and Lemoore, California; Fallon, Nevada; and Bangor, Washington.