From Labor Day through February, you won't need a pass to enter the museum on weekdays, the NMAAHC announced over the weekend. Visitors will be able to enter the museum on a first-come, first-served basis on weekdays starting at 10 a.m.
You will, however, still need a timed-entry pass on weekends. You can get same-day passes for weekends online.
In addition, advance timed passes for Saturdays and Sundays in December will become available starting Wednesday at 9 a.m. You'll be able to search for advance timed passes for Dec. 1 and the weekends of Dec. 7-8, 14-15, 21-22 and 28-29.
You can also reserve passes here https://nmaahc.si.edu/visit/passes ot by phone by calling 844-750-3012.
Admission and passes are free.
If you're visiting on a day that passes are required, remember that everyone in your group will need his or her own pass, including babies. In addition, the museum will continue to require advance timed-entry passes every day for groups of 10 or more.