BAE Systems Technology Solutions & Services Inc., doing business as BAE Systems, Rockville, Maryland, is awarded a $17,440,229 firm-fixed-price contract modification (P00021) under a previously awarded contract (N00604-19-C-4001) to exercise Option Year Three for the operation and maintenance of Navy communication, electronic, and computer systems. The contract included a 12-month base period and four one-year option periods. The exercise of this option will bring the estimated value of the contract to $63,187,185, and if all options are exercised, it will bring the total estimated value to $80,149,463. Work will be performed in Oahu, Hawaii (94%); and Geraldton, Australia (6%). Work will begin December 2021 and is expected to be completed by November 2022; if all options are exercised, work will be completed by November 2023. Fiscal year 2022 operation and maintenance (Navy) funds in the amount of $1,730,921 will be obligated at the time of award and funds will expire at the end of the current fiscal year. This contract was solicited on a full and open, unrestricted basis with two offers received. Naval Supply Systems Command Fleet Logistics Center Pearl Harbor, Regional Contracting Department, Pearl Harbor, Hawaii, is the contracting activity.