The Mission and Installation Contracting Command is seeking market research for grease trap cleaning and unused cooking oil collection services at Joint Base Lewis-McChord (JBLM) in Washington. The contractor will perform 100% on-site cleaning of grease traps and interceptors, and collect and dispose of UCO off base, with the possibility of adding or removing facilities. The estimated period of performance includes a base year plus four option years, beginning in January 2027, under a firm-fixed-price contract. Responses to this sources sought notice are due by 2:00 PM PDT on May 29, 2026. No budget amounts are specified, and no site visit will be conducted.