Hexagon US Federal Inc., Huntsville, Alabama, is awarded a $17,736,272 firm-fixed-price modification (P00008) to previously awarded firm-fixed-price contract (M67854-23-C-4902) for sustainment of the Consolidated Emergency Response System (CERS) to provide hardware, software, and services to sustain and maintain CERS at Marine Corps installations. The total cumulative face value of this contract is $34,732,868. The contract modification is to exercise option year one, second-six-month period for the sustainment of the existing CERS. Work will be performed at Iwakuni, Japan (8.8%); Cherry Point, North Carolina (7.6%); Quantico, Virginia (7.6%); Camp Butler, Okinawa, Japan (7.6%); Beaufort, South Carolina (7.6%); Parris Island, South Carolina (7.6%); Albany, Georgia (7.6%); Camp Pendleton, California (7.6%); Barstow, California (7.6%); Twentynine Palms, California (7.6%); Miramar, Florida (7.6%); Camp Lejeune, North Carolina (7.6%); and Yuma, Arizona (7.6%), with an expected completion date of March 31, 2027. Fiscal 2024 operations and maintenance (Marine Corps) funds in the amount of $4,251,020 are obligated at time of award. Contract funds in the amount of $4,251,020 will expire at the end of the current fiscal year. This procurement is a sole source award to a large business in accordance with Federal Acquisition Regulation 6.302-1, authorized or required by statue. The Marine Corps Systems Command, Quantico, Virginia, is the contracting activity.