Applied Physical Sciences Corp., Groton, Connecticut, is awarded a $14,306,590 cost-plus-fixed-fee contract for the development and application of physics-based tools, analysis techniques and concepts for enhanced submarine security. Work will be performed in Groton, Connecticut, with an expected completion date of April 8, 2026. The cumulative value of this contract is $14,306,590, including a five-year base period and no option periods. Fiscal 2020 research, development, test and evaluation (Navy) funds in the amount of $1,000; and fiscal 2021 research, development, test and evaluation (Navy) funds in the amount of $1,013,000 are obligated at time of award. Funds in the amount of $1,000 will expire at the end of the current fiscal year. This contract was competitively procured under N00014-20-S-B001 — long-range broad agency announcement (BAA) for Navy and Marine Corps science and technology. Since proposals are received throughout the year under the long-range BAA, the number of proposals received in response to the solicitation is unknown. The Office of Naval Research, Arlington, Virginia, is the contracting activity (N00014-21-C-1035).