No prior reservation is needed. Enter any time during the hours of operation. Simply scan your ticket and enter.
MOMA: NO RESERVATION REQUIRED. It's a skip-the-line access ticket. You must still wait on the security check line. Once in the museum, you do not have to exchange it for a ticket or get it redeemed at the Member Desk. Just simply scan the QR and enter.
AMNH: NO RESERVATION REQUIRED. You must scan this ticket and exchange it for an AMNH ticket at the desk with a guest service representative.