Ele não menciona isso porque está em ordem de chegada até que todos os ingressos acabem, de acordo com página do Congressman's Posey :
Bureau of Engraving and Printing The Bureau is responsible for the printing and designing the nation’s currency, U.S. postal stamps, official invitations, and ID cards. During the tour, you'll see millions of dollars being printed. The tour features the various steps of currency production, beginning with large, blank sheets of paper, and ending with wallet-ready bills! Public Tour: 9:00 a.m. – 10:45 a.m. & 12:30 p.m.-2:00 p.m. (every 15 minutes). Extended Summer Hours (APRIL-AUG): 2:00 p.m. – 3:45 p.m. (every 15 minutes) & 5:00 p.m. – 7:00 p.m. (every 15 minutes). Ticket Booth: 8:00 a.m. until all tickets are gone. Visitor Center (Enter at 14th & C): 8:30 a.m. - 3:30 p.m. My office can attempt to schedule a tour for you if you contact my Washington, D.C. office at (202) 225-3671. Tour groups may not exceed 10 people.
Que você pode agendar para o dia que desejar, em vez de arriscar que os ingressos estejam ou não disponíveis.