Presolicitation notice from the Department of Defense (DEPT OF DEFENSE) for the procurement of Defense Health Agency Medical Treatment Facility O&M Services MATOC. This notice is for the solicitation of Operation and Maintenance services of Medical Treatment Facilities (MTRs) in geographical areas classified as Area of Responsibility (AOR) 1 & 2 regions. The services include maintenance and support for various types of equipment in hospitals, clinics, medical administration buildings, ambulatory health facilities, and more. The contract will be a Firm-Fixed Price (FFP) Indefinite Delivery/Indefinite Quantity (IDIQ) Multiple Award Task Order Contract (MATOC) with a duration of five base ordering periods. The acquisition is open to both unrestricted competition and small businesses, with a target of six small businesses and four other than small businesses in the pool. The estimated solicitation issue date is January 15, 2024, with proposals due on or about February 29, 2024, and the proximity date of award anticipated around June 24, 2024.