No.

来源: 于 2003-11-24 14:40:00 [旧帖] [给我悄悄话] 本文已被阅读：次

That means they have to enter U.S. by 20 May 2004. Any time before that date, they can enter U.S. unlimited times (M=multiple entries).

Each time they enter the States, the INS officer at the airport will grant them a time period during which they are allowed to stay legally (on their I94 cards).

Enjoy the family reunion.