ship was awarded the Arleigh Burke Fleet Trophy, as the Pacific Fleet ship that improved the most in the previous year, based on the Battle Efficiency Competition. Future U.S. submarine of the name On 25 July 2016, Navy Secretary Ray Mabus announced that the lead ship of the planned of ballistic missile submarines would also be named , after the District of Columbia. This raised the possibility that the attack sub Columbia might still be in active service when the new ballistic missile sub was commissioned in 2031, although the attack sub would be 37 years old by that point. As of 2022, 36 Los Angeles-class boats have been retired, and only three were in service longer than 37 years. On 3 June 2022, the Navy announced that the new sub would be named USS District of Columbia to eliminate the possibility that two ships in commission might bear the same name, which is forbidden by federal law. References Los Angeles-class submarines Nuclear submarines of the United States Navy Ships built in Groton, Connecticut 1994 ships Submarines of the United States