NASA/MSFC intends to issue a sole source contract extension to Amentum Services, Inc. for Facilities Operations and Maintenance Support Services. The extension is for up to 18 months, from December 31, 2025, through June 30, 2027, and consists of three six-month options. The purpose is to ensure uninterrupted critical maintenance, operations, and environmental services at the Marshall Space Flight Center campus in support of key NASA programs. This action is necessary to avoid a break in service and unacceptable mission risk until a follow-on contract is awarded and transitioned. The justification cites that only the incumbent possesses the required institutional knowledge and that using another source would cause substantial cost duplication or unacceptable delays.