Electric Boat Corp., Groton, Conn., is being awarded a $174,486,588 cost-plus-fixed-fee option under existing contract (N00024-10-C-2118) for additional lead-yard services, development studies, and design efforts related to Virginia-class submarines. The contract provides lead, lead-yard services for Virginia-class submarines that will maintain, update, and support the Virginia-class design and related drawings and data for each Virginia-class submarine, including technology insertion, throughout its construction and post-shakedown availability period. The contractor will also provide all engineering and related lead-yard services necessary for direct maintenance and support of Virginia-class ship specifications. In addition, the contract provides development studies and design efforts related to the Virginia-class submarine design and design improvements; preliminary and detail component and system design; and integration of system engineering, design engineering, test engineering, logistics engineering, and production engineering. The contractor will continue development studies and design efforts related to components and systems to accomplish research and development tasks and prototypes and engineering development models required to fully evaluate new technologies to be inserted in succeeding Virginia-class submarines. Work will be performed in Groton, Conn. (91.1 percent); Newport, R.I. (1.4 percent); Quonset, R.I. (3.5 percent); and Newport News, Va. (4 percent). Work is expected to be completed by September 2012. Contract funds will not expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington, D.C., is the contracting activity.