The U.S. Navy awarded General Dynamics Electric Boat a $13.4Mcontract modification for nuclear-submarine work. Electric Boat is a wholly owned subsidiary of General Dynamics. Under the terms of the contract modification, Electric Boat will provide design agent, planning yard, engineering and technical support for nuclear submarines. Electric Boat will also provide planning, scheduling and technical support for submarine maintenance activities. Initially awarded in March 2004, the contract could be worth more than $1.1 billion over five years if all options are exercised and funded. Ninety-one percent of the work will be performed at Groton; 5 percent at Newport, R.I.; and 4 percent at Quonset Point, R.I. Work performed under this modification is expected to be completed by June 2008.