回复：请教各位：关于父母B2签证多次往返

I believe how long they can stay is granted by the immigration office at the port of entry. There is nothing you can do except that you file the request to extend the stay. Mostly they will give B2 parents 6 months and another 6 months extension. But they have to bear the risk of being rejected next time to get the B2 visa.

And, their re-entering US might be questioned by the officers, esp. at the edge when the B2 is gonna expire.

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• 回复：回复：请教各位：关于父母B2签证多次往返 -请问大家一下- ♀ (104 bytes) () 11/13/2006 postreply 20:26:39

• 入境地海关的官员可以不再给六个月，只给三个月甚至更短，但一般 -xiaobaitu- ♀ (12 bytes) () 11/13/2006 postreply 21:40:25

• 回复：入境地海关的官员可以不再给六个月，只给三个月甚至更短，但一 -请问大家一下- ♀ (89 bytes) () 11/13/2006 postreply 22:20:08

• 延期后下次很难签到签证 -xiaobaitu- ♀ (0 bytes) () 11/13/2006 postreply 22:22:16

• 回复：延期后下次很难签到签证 -请问大家一下- ♀ (124 bytes) () 11/13/2006 postreply 22:35:50

• 实际上是有的，但多数情况下海关不怎么查上次呆的时间 -xiaobaitu- ♀ (52 bytes) () 11/14/2006 postreply 07:26:14