The Department of the Navy is seeking commercial vendors authorized to operate in Japan to provide oily wastewater treatment and recycling services for energy recovery at Commander, Fleet Activities Yokosuka (CFAY), Japan. The contractor will handle the collection, on-site treatment, and disposal of hazardous and non-regulated materials, including bilge and ballast water, in compliance with Japanese regulations. The government anticipates awarding a 5-year Firm-Fixed-Price, Indefinite-Delivery, Indefinite-Quantity contract, with services ordered as needed via task orders. Responses to this sources sought notice are due by 20 May 2026 at 1600 Japan Standard Time. No budget amount is specified in the notice.