Capt. Michael Fontaine, Commander, Fleet Activities Sasebo (CFAS), climbs down a ladder into the I-4 fuel tank at CFAS’s Iorizaki fuel facility Feb. 14, 2024. Fontaine performed inspections of I-4, the Department of Defense’s largest fuel tank in the world holding over 420,900 barrels of oil, as part of the tank’s 20-year cleaning cycle to maintain structural integrity and readiness. Navy

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Keywords: cfas, fuelcleaning, fueltank, iorizaki, japan, largestfueltank