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Tests and evaluates all undersea warfare systems, including submarine, surface and aviation anti-submarine warfare and mine warfare systems under the most operationally realistic conditions possible. From the Virginia SSN-774 Class Attack Submarine to the Acoustic Rapid COTS Insertion (ARCI) sonar system, the Navy’s dominance of undersea warfare is continually evolving. The division’s main effort is to assist, through early involvement, in the acquisition process followed by proper tests and accurate evaluations to determine system performance and resulting capability.