Electric Boat will also procure long-lead time materials needed for the production of the fleet under the Integrated Product and Process Development contract, the Defense Department said Thursday.
Work under the modification will occur in Rhode Island, Virginia and Connecticut.
The procurement vehicle will be absorbed into the IPPD contract in October 2022, as well as combined with an original funding modification with the U.K. worth $10M.
The company secured the first IPPD contract with a potential value of $5B in 2017.