General Dynamics Electric Boat, Groton, Connecticut, is awarded a $24,770,301 cost-plus-fixed-fee modification to previously-awarded contract N00024-18-C-2101, to exercise an option for engineering and technical design effort to support research and development concept formulation of undersea technology for current and future submarine platforms. This contract procures advanced submarine research and development, including studies to support manufacturability, maintainability, producibility, electronic obsolescence, reliability, manning, survivability, hull integrity, performance, structural, weight/margin, stability, arrangements, main and auxiliary machinery systems, fluid systems, acoustics, non-acoustics, hydrodynamics, ship control, logistics, human factors, materials, stowage, submarine safety, automation and affordability. Work will be performed in Groton, Connecticut (99 percent); and Newport, Rhode Island (1 percent), and is expected to be completed by October 2019. Fiscal 2019 research, development, test and evaluation (Navy) funding in the amount of $1,310,000 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, District of Columbia, is the contracting activity.