They are either mailed or sent to your mobile device, they also have free entry if you arrive I believe before midday
I believe they are mailed or sent to your mobile device. Get there early because you will have to be in line for a bit. Dress comfortably and wear good walking shoes. Don't carry large purses or backpacks.
Tickets or timed passes are available monthly on the Nmaah website. Once you've selected a date & time slot you must enter an email address or a cell phone number. At that point the confirmation & a link for the passes will be sent to you. The passes can then be printed or you can leave them (the passes) on your phone to be scanned upon entry.
If you got the passes online through etix you should have received them by email.
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