This is a sources sought notice for planning purposes to identify potential contractors, including small businesses, for upcoming Fire Extinguisher Services. The intended contract will be Firm Fixed Price and includes a one-year base period with four option years. Services involve the maintenance, inspection, and testing of various types of fire extinguishers, including ABC Dry Chemical, Halon, K-Class Wet Chemical, and wheeled units. Performance will be for the 182d Airlift Wing of the Illinois Air National Guard. Interested parties must submit a written response via email by a specified deadline, not exceeding five pages and including specific company and project details.