The National Deployable Tactical Operations System (DTOS) is a vehicle-based tactical system with an 18-vehicle fleet spread throughout the Corps.  DTOS provides command and control for disaster operations.  Nationally, there are three Deployable Tactical Operations Center (DTOC) sets, two in Mobile District and one in Sacramento District.  Each is composed of two Emergency Tactical Operations Center (ETOC) trailers which are towed into position.  These trailers have workspace, computer capabilities, communication systems, and can be manned by up to 38 personnel.  Each DTOC set is supported by a communication vehicle and a support vehicle, all deployable within 36 hours.

In recent years, emergency team members from Mobile district have deployed to Kuwait, Haiti and Surinam, throughout the Southeast, and assisted other district emergency response needs including Hurricane Georges recovery in Puerto Rico.