Operating from Building 215 on Sylvester Road at Point Loma, San Diego, the Military Sealift Command CIVMAR Support Unit West is the Pacific-coast processing hub for the Navy's Civil Service Mariner workforce. CSU-West coordinates deployment readiness alongside shore commands like NIWC, verifying U.S. Coast Guard merchant-mariner credentials, medical Fit-for-Duty certification, and security clearances before each ship assignment. CIVMARs muster at the unit to initiate travel-claim processing, sea-service letter requests, and merit-promotion board documentation through the CIVMAR Support Center's toll-free line. Between rotations, mariners manage allotment changes and travel reimbursements through the support center while accessing on-base financial infrastructure like the Navy Federal Credit Union terminal near the submarine base. The unit's most critical function is emergency surge manning: assembling qualified deck, engine, and supply watch teams on compressed timelines when MSC sealift or replenishment vessels require rapid crew augmentation across the Pacific theater.