Yes, in 2026, a reservation is strongly recommended and practically mandatory for anyone wishing to take the elevator to the top of the Washington Monument. The National Park Service utilizes a timed-entry system managed through the Recreation.gov portal. Tickets become available exactly 30 days in advance at 10:00 a.m. EST and typically sell out within minutes, especially during the peak spring and summer months. A second, smaller batch of "next-day" tickets is released daily at 10:00 a.m. for those who missed the 30-day window. While a very limited number of "walk-up" tickets are distributed for free at the Washington Monument Lodge starting at 8:45 a.m., queues often begin forming as early as 7:00 a.m., and there is no guarantee of entry. Without a digital or physical reservation ticket, guests are only permitted to explore the exterior grounds and the plaza at the base of the obelisk.