Lockheed Martin Rotary and Mission Systems, Manassas, Virginia, is awarded a $30,261,423 cost-plus-fixed-fee and cost-only modification to previously awarded contract N0002419C6400 for systems engineering and integration on Navy submarines. Work will be performed in Manassas, Virginia (68%); Waterford, Connecticut (10%); Groton, Connecticut (10%); Middletown, Rhode Island (7%); and Newport, Rhode Island (5%), and is expected to be completed by September 2024. Fiscal 2020 shipbuilding and conversion, Navy funds in the amount of $3,562,092 (22%); fiscal 2021 shipbuilding and conversion, Navy funds in the amount of $6,349,281 (40%); and fiscal 2023 research, development, test and evaluation, Navy funds in the amount of $5,947,768 (38%) will be obligated at time of award and will not expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington, D.C., is the contracting activity.