Under the terms of the contract modification, Electric Boat will provide design agent, planning yard, engineering and technical support for US nuclear submarines, as well as the UK Trident submarine program.
Electric Boat will also provide material to support the installation of design changes for submarine hulls; mechanical and electrical systems; command and control systems; and subsystems.
Initially awarded March 3, the contract could be worth more than $1.1 billion over five years if all options are exercised and funded.
Sixty-five percent of the work will be performed at Groton; 25 percent at Quonset Point, R.I.; 6 percent at Newport, R.I.; 3 percent at Kings Bay, Ga.; and 1 percent at Bangor, Wash. Work performed under this modification is expected to be completed by Aug. 2007.