DAR Constitution Hall is not involved in the sale of tickets. The promoter of each event must contract with Ticketmaster to arrange for the sale of tickets. All ticketing questions should be addressed to the promoter of the event or Ticketmaster . In the event of a cancellation or postponement of an event, return to the place of purchase for information on refunds. The Box Office at DAR Constitution Hall is only open on the day of an event, for that event, and is operated by the promoter of the event. Seating for persons with mobility disabilities should be arranged through Ticketmaster or the promoter of the event.