| Family | Airline or ATPCO encoded service family(s). |
| Pricing | Actual pricing. This is what is displayed to customer. Include pricing type with taxes. Extend with DisplayLabel. |
| Size | Size amounts and unit of measure.Baggage size specification. |
| SpecialItem | Specialty item details. |
| 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. |
| Weight | Weight amount and unit of measure.Baggage weight specification. |