| Unit Name: | Military Sealift Command Japan |
| Dates: | July 2006 - Present |
| Country: | United States |
| Branch: | United States Navy |
| Type: | Installation Command / Ship Support Unit |
Military Sealift Command Japan (MSC Japan) (軍事海上輸送司令部 (MSC) 日本)[1] is an Echelon IV Command of the United States Navy responsible for training, equipping and maintaining Military Sealift Command's government-owned, government-operated sealift ships throughout the country of Japan. Headquartered in Yokohama at Yokohama North Dock and co-located with the US Army 836th Transportation Battalion,[2] MSC Japan is Commanded by an Active Duty Naval Officer and staffed with the following organizational Departments: N1 (Administration), N3 (Operations/Port Operations), N4 (Logistics), N6 (Information & Technology Support), N7 (Port Engineer), N8 (Accounting), and N10 (Contract Support).[3] MSC Japan operates two warehouses, one at North Dock (MSC's largest overseas warehouse) and one in Sasebo, Japan. These facilities provide logistics support for all MSC units operating within the Pacific theater.[4] MSC Japan provides port installation services as well as manages all repair maintenance availabilities for MSC units throughout Japan, including Quarterly Voyage Repairs (VRs) (lasting approx. 2 week-1 month duration), Mid-Term Availabilities (length of availability depends on the repair work needed, but is required for MSC units approx. every 15 months), and Regular Overhauls (ROHs) (required for MSC ships every 5 years).[5]
For Operational Chain-of-Command, MSC Japan reports to MSC Far East (MSC FE) Headquartered in Singapore and via competency alignment with Military Sealift Command Headquarters (COMSC) in Norfolk, Virginia.[6] [7]
Timeline of MSC Japan: