Commander - Capt. Jim Waters
Deputy Commander for Training - Cmdr. Brian Sittlow
Deputy Commander for Readiness - Cmdr. Fraser Hudson
The mission of Commander Submarine Squadron 4 is to equip, man and train Sailors assigned to fast attack submarines to ensure that they are combat ready and capable of taking the fight to the enemy. Its submarines are able to bring strength, agility, firepower and endurance to the battle space like no other platform in the U.S, Navy. Submarine Squadron 4 includes two Los Angeles-class submarines and four Virginia-class submarines.