| AcceptableGuarantees | A collection of accepted guarantees. |
| AddtionalRules | A collection of Additional rules. |
| CancelPenalties | A collection of required payments that are part of the booking restriction.A collection of CancelPenalty. |
 CheckoutCharge | The charges that may apply to an early or late checkout. |
| Description | General description of booking rule.An indication of a new paragraph for a sub-section of a formatted text message. |
| DOW_Restrictions | A collection of Day Of Week restrictions. |
| LengthsOfStay | A collection of lengths of stay.A collection of LengthOfStay. |
| RequiredPaymts | A collection of required payments that are part of the booking restriction.A collection of required payments. |
| RestrictionStatus | Availability status assigned to the room rate combination for this booking rule. |
| UniqueID | The unique identifier element allows the trading partners to uniquely identify each Booking Rule, for transaction tracability.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). |
| Viewerships | A collection of Viewships.Viewerships determine the distribution channel(s) for a rate plan. As an optional element, the absence of Viewerships implies a generally available rate, while the presence of a Viewerships collection implies qualifications on the rate. This may also be used to define a system that is able to view the hotel content. |
| AbsoluteDropTime | The fixed time that the booking restriction goes into effect to cancel the non-guaranteed reservation. Either this attribute or the DropTimeOffset element may be used. |
| AddressRequired | An address is required to complete the booking. |
| DepositWaiverOffset | Number of days prior to arrival date for which a deposit is no longer accepted (because of a too short time delay between reservation and guest arrival). |
| ForceGuaranteeOffset | Number of days prior to arrival date at which a guarantee is required. |
| GenerallyBookable | Indicates whether this rate plan can be booked by those not in the viewership collection. If this attribute is False (0), then the viewerships collection lists those who have view-only or bookable status for this rate plan. If this attribute is True (1), then the viewerships collection lists those who have view-only or not-viewable status for this rate plan. |
| MaxAdvancedBookingOffset | Maximum days before the arrival date for which this rate plan may be booked. |
| MaxContiguousBookings | The maximum number of times a rate may be booked contiguously within a reservation (often used with packages). |
| MaxTotalOccupancy | Defines the maximum number of total occupants allowed for a rate plan. |
| MinAdvancedBookingOffset | Minimum days before the arrival date for which this rate plan may be booked. |
| MinTotalOccupancy | Defines the minimum number of total occupants required for a rate plan. |
| PriceViewable | Indicates whether the price for this rate plan can be viewed, or whether the guest must contact another entity to obtain price information. |
| QualifiedRateYN | Boolean value indicating whether a specific rate plan must be qualified prior to inclusion in availability response messages. |
| Code | Any code used to specify an item, for example, type of traveler, service code, room amenity, etc. |
| CodeContext | Identifies the source authority for the code. |
| Quantity | Used to define the quantity for an associated element or attribute. |
| URI | Identifies the location of the code table. |
| Duration | The duration datatype represents a combination of year, month, day and time values representing a single duration of time, encoded as a single string. |
| End | The ending value of the time span. |
| Start | The starting value of the time span. |
| AbsoluteCutoff | Defines the absolute deadline. Either this or the offset attributes may be used. |
| OffsetCalculationMode | This indicates how the offset period is applied for the release back to general inventory of unbooked rooms in the inventory block . |
| OffsetDuration | The units of time, e.g.: days, hours, etc., that apply to the deadline. |