This is a Sources Sought notice to identify interested contractors for a future Firm Fixed-Price contract for a Preventive Maintenance Program and services for Port Security Barrier Systems. The work, to be performed entirely in Yokosuka, Japan, includes recurring maintenance and unscheduled repairs, as well as potential non-recurring tasks. Any awarded contractor must be fully authorized to operate and comply with all Japanese laws, and the U.S. Government will not provide SOFA-related statuses to the contractor or its employees. Interested firms must submit a specific Contractor Information Form via email.