You will probably have to go thru US customs between cruises. They will give you a new sail pass card and letter as where to meet at what time. Then the staff will take you to customs and then escort back to the ship ,where you'll have a new picture taken for the new card.
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Ships Sailed:
SS Ithaca , Volendam , Mariner of the Seas (x2) , Veendam , Coral Princess , Island Princess (x3) , Emerald ,Sapphire (x3)