How long is a H-1b visa valid?

I have heard that H-1b visa is normally valid for three years and can be renewed once for another three years. I just wondered whether it is possible to get a H-1b for two years first and renew it twice, two years each time. Both cases are six years total. Any information is highly appreciated.

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• 回复： -YuTu- ♀ (74 bytes) () 08/08/2006 postreply 21:01:39

• 回复：回复： -north123- ♂ (122 bytes) () 08/09/2006 postreply 06:42:53

• 回复：How long is a H-1b visa valid? -doshexh- ♀ (293 bytes) () 08/09/2006 postreply 08:39:32

• 回复：回复：How long is a H-1b visa valid? -North123- ♂ (46 bytes) () 08/09/2006 postreply 12:46:21