The Submarine Rescue Diving and Recompression System's (SRDRS) Rescue Capable System (RCS) replaced the Deep Submergence Rescue Vehicle Mystic (DSRV-1) as the U.S. Navy's deep-submergence submarine rescue asset on Sept. 30. Mystic and the DSRV program began deactivation on Oct. SRDRS is a rapidly deployable rescue asset that can be delivered by air or ground, installed on pre-screened military or commercial vessels of opportunity (VOO) via a ship interface template, and mated to a distressed submarine within a 72-hour time to first rescue period. Mystic is a small rescue submarine capable of deploying via air or ground to a port where it is mated to a specially-configured submarine which serves as the host platform for the voyage to the disabled submarine.