|•Only an official Museum Day Live! ticket is eligible for free entry. Official tickets can be found here on the Museum Day Live! Website.|
•One ticket per household, for two people.
•A ticket will gain entry to only one of the participating museums, excluding parking and special events and exhibits.
•If museum reaches capacity, museum has the right to limit the number of guests until space becomes available.
Read more: http://www.smithsonianmag.com/museumday/#ixzz26hLqCQfR
2. Print out Admission Card