The estimated charges outlined on the Reservation Confirmation are broken down into three main groups: room rental, equipment and labor. Room rental begins at event setup and concludes after event teardown. The final invoice amount may differ from those shown on the Reservation Confirmation due to changes involving actual room rental, equipment usage, labor required and/or other additional charges. Equipment listed on the estimate will be billed regardless of use on the day of the event. If Classroom Services staff are required to breakdown or reset rooms or are required to complete elaborate equipment set-ups, requestors will be responsible for reserving the room for the purpose of covering the breakdown and reset durations. To ensure organizational coverage and safety for Classroom Servicest staff, labor fees will be assessed on the day of the event for all non-traditional or complex room and equipment requests.