  ConfID | A confirmation number by which this reservation can be uniquely identified. Can also be used for reservation, contract and PNR IDs as well. |
| Fees | A collection of fees associated with this vehicle reservation. |
| PricedEquips | A collection of special equipment that is part of this reservation, along with the charges associated with this equipment. |
| RentalRate | Information on the rates associated with this vehicle. Rate information can include the distance and the base rental cost, along with information on the various factors that may infuence this rate. This describes time, mileage and other charges. |
| TotalCharge | The total cost of this reservation, the sum of the individual charges, optional charges and associated fees. |
| 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. |
| Vehicle | Information on one specific vehicle along with detailed information on the charges associated with this vehicle.The VehicleType complex type identifie sthe data that fully describes a vehicle. This includes the core information along with supplemental information such as make and model, and a link to a picture. |
| 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. |
| Vendor | Identifies the vendor associated with this information.Identifies a company by name. |