The Department of Commerce, specifically the National Oceanic and Atmospheric Administration (NOAA), intends to award a sole-source contract modification to increase the maximum value of the existing Indefinite Delivery, Indefinite Quantity (IDIQ) contract 1332KP-23-D-NAAA0003 for Geostationary Ground Sustainment Services (GGSS). This modification will raise the contract ceiling from $275,169,157 by an additional $270,727,196, resulting in a new maximum value of $545,896,353, as the incumbent contractor, L3Harris Technologies, Inc., is uniquely qualified to provide the specialized sustainment services required for the complex and interdependent components of the GEO Ground System. The sustainment of this system is critical for ensuring the reliability and safety of satellite operations, which involve extensive custom software and hardware configurations. Interested parties may express their interest and technical capabilities to the primary contact, Gerald Robertson, at gerald.robertson@noaa.gov, or the secondary contact, Tamalia Adams, at tamalia.adams@noaa.gov, by the specified deadline, although the government will not be responsible for any costs incurred in responding to this notice.