| ChargesRules | General container for rules specifying amounts for such things as: surcharges, deposits, change penalties, cancellation penalties, etc. |
| LengthOfStayRules | Rules providing minimum or maximum stay restrictions.Type defining Min and Max Stay Restrictions. |
| ResTicketingRules | General container for rules regarding fare reservation, ticketing and sale restrictions |
| 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. |