1944: ACORN 10 was decommissioned. (Used during World War II, an ACORN was a tailored unit designed to carry out the rapid construction and subsequent operation of a landplane and seaplane advance base. Each ACORN had a construction battalion attached to it, as well as trained personnel to operate the control tower, field lighting, aerological unit, transportation, medical, berthing and messing facilities. A Construction Battalion Maintenance Unit (CBMU) also accompanied each ACORN to maintain the base after the initial construction was completed and the construction battalion had been withdrawn. During the war, ACORNs were sent to such places at Guadalcanal, Espiritu Santo, Green Island, Rendova, Treasury Island and Majuro.)
1945: The 73rd NCB was inactivated on Peleliu.
1966: NMCB 4 advance party departed Chu Lai for the continental U.S. (CONUS).
1968: Capt. Charles C. Heid, Civil Engineer Corps (CEC), relieved Cmdr. Paul R. Gates, CEC, as commander, 21st Naval Construction Regiment (NCR).
1968: NMCB 3 relieved NMCB 121 at Camp Faulkner, Da Nang, Republic of Vietnam (RVN).
1972: Camp Hill, an advanced base training camp, was dedicated in honor of the late Capt. James M. Hill Jr., CEC. The camp is situated on a 575-acre plot of land under lease to the Navy in the DeSoto National Forest, 15 miles north of the Naval Construction Battalion Center (NCBC) Gulfport, Mississippi. Hill was a former commanding officer of the Center.
July 12-20, 1968: NMCB 3 main body arrived at Camp Faulkner, RVN, by government aircraft.
2010: Cmdr. La Tanya Simms, CEC, relieved Cmdr. Dean Vanderley, CEC, as commanding officer, NMCB 4, at Forward Operating Base (FOB) Deh Dadi II, Afghanistan.
2013: Capt. Eric Aaby, CEC, relieved Capt. Richard Whipple III, CEC, as commanding officer of ACB 1 at Naval Amphibious Base, Coronado, California.
1942: The 13th and 14th NCBs were commissioned at Camp Allen, Norfolk, Virginia.
1965: NMCB 7 boarded USNS General Simon B. Buckner in Davisville, Rhode Island, and arrived in Rota, Spain, 13 days later.
1968: Seabee Team 5801 deployed from Chau Phu to Camp Haskins North, Da Nang, RVN.
1943: 106th NCB (Section I) commissioned at Naval Construction Training Center (NCTC) Camp Peary, Magruder, Virginia.
1944: ACORN 15 decommissioned; the 89th NCB was inactivated at Camp Parks, Shoemaker, California.
1968: Cmdr. F.H. Lewis Jr., CEC, relieved Cmdr. E.H. March, CEC, as commanding officer, NMCB 133.
1942: The 7th NCB left Advance Base Depot, Port Hueneme, California, for San Francisco, California. This was the first battalion to stage through Port Hueneme.
1944: Construction Battalion Military Unit (CBMU) 613 was established in the Azores from the men of the 96th NCB. Also, the 33rd Special NCB was commissioned at NCTC Camp Endicott, Davisville, Rhode Island.
1945: 26th NCB inactivated in Alaska, and remaining personnel re-designated CBMU 634; the 2nd Special NCB inactivated on Guam.
1950: NMCB 3 activated.
1966: NMCB 40 advance party arrived in Chu Lai to relieve NMCB 4.
1970: Construction Battalion Unit (CBU) 402 established at Pensacola, Florida.
1971: CBU 414 established at Naval Submarine Base (NAVSUBBASE), New London, Connecticut.
2010: Cmdr. Mike Saum, CEC, relieved Cmdr Stan Wiles, CEC, as commanding officer, NMCB 1 at NCBC Gulfport, Mississippi.
1943: 104th NCB activated at NCTC Camp Peary, Magruder, Virginia
1968: The dedication ceremony for Camp Haines was held with Rear Adm. J.V. Bartlett, commander, 3rd NCB, as guest speaker. The camp was dedicated in honor of Chief Equipment Operator John C. Haines who was killed during NMCB 4 s 1967 deployment to Da Nang, RVN.
1968: Cmdr. R.J. Westberg, CEC, relieved Cmdr. J.F. O Leary, CEC, as commanding officer, NMCB 8.
July 16-22, 1969: NMCB 1 main body of 635 men arrived in Camp Campbell, Phu Bai, RVN.
1968: The first increment of the Naval Mobile Construction Battalion (NMCB) 58 advance party, consisting of one officer and 13 enlisted personnel, departed Camp Haskins North, Republic of Vietnam (RVN) bound for Construction Battalion Center (CBC), Davisville, Rhode Island.
1968: First increment of NMCB 22 s advance party, consisting of five officers and 75 enlisted men, arrived at Camp Haskins North from CBC, Gulfport, Mississippi.
2009: Capt. Scott Lister, Civil Engineer Corps (CEC), relieved Capt. Jim Wink, CEC, as commander, Amphibious Construction Battalion (ACB) 1 at Naval Amphibious Base (NAB) Coronado, California.