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OTA-VEHICLE

OpenTravel car rental XML messages.

Definition

OTA Vehicle keys: OTA_VehLocSearchRQ/RS (location search), OTA_VehAvailRateRQ/RS (availability + rates), OTA_VehResRQ/RS (reservation), OTA_VehModifyRQ (modification), OTA_VehCancelRQ (cancellation), OTA_VehRateRuleRQ (rate rules), OTA_VehRetResRQ (retrieve reservation). Channel managers: Hotwire, RentalCars.com, Auto Europe. Supplier adoption: Hertz, Avis Budget, Europcar, Sixt, Enterprise, Thrifty, Dollar, National.

Origin

OTA Vehicle messages published v1.0 by OpenTravel Alliance 2001 ; major integration 2005-2010 ; biannual releases.

Example in context

RentalCars.com (Booking Holdings) queries Hertz via OTA_VehAvailRateRQ for 5 CDG locations ; integrates rates and confirmations in B2B XML mode.

Last updated: May 16, 2026