他们会在系统中查到你的信息, 但还是推荐你把回执打印出来并随程带着, 下面是CBP官网给的解释.


you will receive a receipt that you should print and save for your records. At the port of entry, a CBP officer will be able to look up your provisional I-94 in the CBP system using the same travel document (passport or BCC) you used when applying for the provisional I-94.


另外, 你的I-94会在入境的时候, 从CBP那里收到

实际是CBP完全不看我任何打印的东西。