This is a Sources Sought notice for market research only, not a solicitation, regarding a rapid spill response and prevention contract at various U.S. military bases and facilities throughout Japan. The contractor must provide all labor, materials, and equipment to respond to oil and hazardous substance spills across seven defined zones, including locations such as Sasebo, Iwakuni, Misawa, Yokosuka, Atsugi, Yokota, Camp Fuji, and Okinawa Island. Interested firms must submit a completed Contractor Info Sheet and up to three relevant projects from the last five years via email by 18 June 2026 at 14:00 JST. No budget amounts are specified in the notice. The performance of services will take place at various U.S. Navy, Marine Corps, Army, and Air bases and facilities throughout Japan.