DTS stands for Defense Travel System, which is a software application used by the U.S. Department of Defense to manage commercial travel in accordance with the governments travel policy. It is an online system that automates temporary duty (TDY) travel, allowing active duty Army, Army Reserve, and Army National Guard members to create travel authorizations, book travel, and generate vouchers for reimbursement. Some key features of DTS include:

• Booking: In DTS, users can search for airline, hotel, and rental car reservations, check per diem rates, and prepare personal travel documents or, with the proper permissions, documents for others.

• Oversight: The Defense Travel Management Office provides functional oversight of DTS, while the Defense Manpower Data Center (DMDC) Program Management Office DTS (PMO-DTS) provides program oversight, including acquisition, technical, operation, and maintenance.

• Training: The Defense Travel Management Office (DTMO) provides training resources for using DTS, including web-based training, distance learning, courseware, and reference materials.

DTS is used for temporary duty travel (TDY) in accordance with DoD Instruction 5154.31, Volume 3. Military members and DoD civilian personnel can book official travel and manage travel expenses using DTS. However, DTS does not typically support permanent duty travel, and most government contractors and nonappropriated funds government employees are prohibited from accessing DTS.