TMS
Travel Management Service (TMS)A service for booking common carrier (e.g., air, rail, and bus confirmations and seat assignments), lodging accommodations, and car rental services; fulfilling (i.e. ticketing) reservations; providing basic management information on those activities; and meeting other requirements as specified in 30173.106 of this title. A TMS may include a travel management center (TMC), Commercial Ticket Office (CTO), an electronically available system, other commercial methods of arranging travel, or an in-house system.