1. 请问F2（dependent，不是full-time student）转F1（Freshman） 同一所学校，是否要换签证才能在今年秋季注册课程？
-Not need, but you can not attend the school until USCIS approve your F-1 status.
---是指只要拿到学校发的F-1 status 的 I-20就可以上学了吗？
-No. You need to file I-539 to USCIS for change of status from F-2 to F-1 by providing the I-20. After the F-1 status is approved, then you can register the courses. Talk to the school International Student Office, then they will help you.
2.J-1 waiver，需要申请者提交国内单位的证明还是教育处背景调查的时候，由教育处直接拿到原单位证明。
-Read these links:
http://www.sino-education.org/studyabroad/J1.htm
http://www.sino-education.org/studyabroad/j12010.htm
再次感谢您的耐心和帮助 ：）
-Not need, but you can not attend the school until USCIS approve your F-1 status.
---是指只要拿到学校发的F-1 status 的 I-20就可以上学了吗？
-No. You need to file I-539 to USCIS for change of status from F-2 to F-1 by providing the I-20. After the F-1 status is approved, then you can register the courses. Talk to the school International Student Office, then they will help you.
2.J-1 waiver，需要申请者提交国内单位的证明还是教育处背景调查的时候，由教育处直接拿到原单位证明。
-Read these links:
http://www.sino-education.org/studyabroad/J1.htm
http://www.sino-education.org/studyabroad/j12010.htm
再次感谢您的耐心和帮助 ：）
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