This is a sources sought notice for a potential 4-month single-award IDIQ contract to provide utilities operations, maintenance, and port operation services at Fleet Activities Sasebo, Japan. The work includes managing electrical, gas, water, steam, sewage, compressed air, and saltwater systems, along with shore utilities support and hotel services for vessels. Performance will occur at various locations in Nagasaki prefecture, including Main Base, Housing, and several other specified sites. The contractor must ensure personnel hold mandatory Navy Operator Certification Authority (NOCA) for both Operator in Responsible Charge and Assistant Operator in Responsible Charge roles. No budget amount or submission deadline is specified in this notice.