YES. AND it is very hard.

来源: 于 2007-08-12 17:49:33 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

If you change another J1, you definetly need another J1 waiver. It is very hard since Chinese embrassy don't support it. They don't give you another waiver letter usually.