Towing DriX from a large vessel is considered an emergency response. As such, this procedure does not include the required markings, lights and other accessories required to establish a long duration tow. It is appropriate for short durations (<24 hours), when the DriX cannot be recovered through normal means. Examples include fouling of the keel such that it cannot be retracted for recovery, malfunction of DriX docking and associated systems, or malfunction of DriX itself when weather and seas prohibit safe deployment of a small boat recovery team.