VISAR has two base stations; one in Road Reef Marina, Tortola, and the second in Virgin Gorda Yacht Harbour. Tortola has a 32-foot Parker 1000 Baltic RIB, powered by twin 300 hp outboard engines. On station in Virgin Gorda is a 28-foot TP Marine RIB, powered by twin 225 hp outboard engines.
When out on an active emergency call (known as a shout), the vessel is operated by a Helm, a #2, a Medic, and up to three additional Crew members. Each boat can take a maximum of two casualties on backboards and either one family member or the doctor/nurse treating the casualty on scene.