| Customer | Information on the one primary driver and, optionally, several additional drivers. This may be used to provide a frequent renter number.Information on the one primary driver and, optionally, several additional drivers. This may be used to provide a frequent renter number. |
 DriverType | Indicates the number of people of each age category associated with this request. |
| Fees | A collection of fees associated with this vehicle reservation. |
| Queue | Information to specify the queue on which the reservation should be placed. |
| RateDistance | Information on the distance that a reserved vehicle may be driven as part of the standard rental charge. Such distance may be unlimited, or a quantity of miles or kilometers for a certain period of time. This may be repeated for situations such as an 8 day rental that has 500 miles per week and 100 miles per additional day. |
| RateQualifier | Indicates the type of rates to be booked, along with any discount number or promotional codes that may affect the rate.The RateQualifierType complex type describes fully rate information associated with a specific rate quotation, including the description of any promotions that may apply. |
| SpecialEquipPrefs | Indicates the preferences for one or more specific items of additional equipment, such as ski racks, child seats, etc. |
| TotalCharge | Total cost for this reservation as returned from an availability search. |
| TPA_Extensions | A placeholder in the schema to allow for additional elements and attributes to be included per Trading Partner Agreement (TPA).Allows extensions to be added to the OpenTravel specification per trading partner agreement. |
| UniqueID | A unique identifier by which to reference the reservation. This is typically referred to as a reservation number.An identifier used to uniquely reference an object in a system (e.g. an airline reservation reference, customer profile reference, booking confirmation number, or a reference to a previous availability quote). |
| VehicleCharges | Information on the charges associated with this vehicle. Such charges may include the base rental amount, additional mileage amounts, fuel costs, etc. |
| VehPref | Indicates any preferences for the vehicle, such as type, class, transmission, air conditioning.The VehiclePrefType complex type defines the information that is used when defining a preference of a vehicle. |
| VehRentalCore | Information that is common, or core, to all requests and responses associated with the reservation of a vehicle.The VehicleRentalCoreType complex type identifies the data that is common, or core, to almost every transaction associated with the rental of a vehicle. |
| VendorPref | Indicates the preferred Vendor Company for car rental. If a company name is supplied, the rates will be supplied for the specific Vendor Company. The company name is unique amongst the vendors. The name of the company is provided in this element.Identifies a preferred company by name. |