Huntington Ingalls Inc., Ingalls Shipbuilding Division, Pascagoula, Mississippi, is being awarded a $64,087,795 hybrid cost-plus award fee, cost-plus fixed fee with a special performance incentive, and cost only modification to previously awarded contract N00024-21-C-4205 to exercise options for planning yard support for LPD 17 amphibious transport dock ships, LHD 1/LHA 6 amphibious assault ships, LSD 41/49 dock landing ships and LCC 19 amphibious command ship. Work will be performed in Pascagoula, Mississippi, with on-site technical support for Chief of Naval Operations availabilities at Mayport, Florida; Norfolk, Virginia; San Diego, California; and Sasebo, Japan. Work is expected to be completed by May 2024. No funding will be obligated at the time of award. This contract was competitively procured. The Naval Sea Systems Command, Washington, D.C., is the contracting activity.