J-1签证难题，敬请高手帮助，多谢！

nihao2009UID: 2641638

首先介绍我的情况：我是3月5日到达美国宾州的一所大学，身份为 J-1 research scholar，进行参观学习，DS2019的有效期是2009年3月1日至2009年9月1日，属于单位公派，签证有效期到9月1日截止。该项目结束后，我还有一个国家公派1年的资助。在国家资助的一年里，我想转到麻省的一所大学进行科学研究工作（此处需说明，为了启动国家资助，我必须本人亲自回国办理手续）。因此，我打算在单位资助项目结束之前，办理完转学手续，这样可以使DS2019表得以延续。然后回国办理启动国家资助的手续，最后签证来美国。

问题如下：
1、我在什么情况下会受到12-month bar的约束？如何避免？
2、我是否会受到24-month bar 的约束？是否会发生再次签证时被拒签的情况？
3、我从目前的大学转出到其他大学，是否属于program 被completed? 是否会受到24-month bar的约束而被拒签？从一个大学转到另一个大学，J-1 research scholar 身份不变，是否等于program 不变？是否等于一个新的program?
4、如果我从新大学处获得的DS2019表依然是J-1 research scholar 身份，我是否就不受两年归国服务的限制？
5、在美国境内可否办理签证业务？如果可以，我想在美国办理。
6、我的计划是否可行？还有什么问题？敬请各位朋友多多指教，多谢多谢！！！

以下是美国的一些法规，供参考。

12-Month Bar (Professor and Research Scholar Categories)
a.  The 12-month bar is in place only for individuals applying to begin an exchange visitor program in the Research Scholar or Professor categories.
b.  The 12-month bar prohibits foreign nationals from beginning a new program in the Research Scholar or Professor categories if they were in the United States in J status (this bar includes J-2 dependents) for all, or
part of the twelve-month period immediately preceding the date of the new program’s commencement, unless they meet one of the following exceptions:
(1)  The 12-month bar is not applicable to exchange visitor participants who are currently participants as a Professor or Research Scholar and are transferring to another institution in the United States to continue their current J-1 program;
(2)  An exchange visitor participant whose prior J status was of less than 6 months duration (physical presence in the U.S.) is exempt from the 12-month bar; and
(3)  An exchange visitor participant in the Short-Term Scholar category is exempt from the 12-month bar.

24-Month Bars on Repeat Participation (Professor and Research Scholar Categories)  
The 24-month bar applies to Exchange Visitors in either the Research Scholar or Professor categories.  Exchange participants who have entered the United States as a Professor or Research Scholar, or who have acquired such status while in the United States, and have completed their program are not eligible for participation as a Professor or Research Scholar for a period of 2 years following the end date of such program participation identified in SEVIS, even if the program is less than 5 years.  If the participant completes a program at one institution, which is less than 5 years (e.g., 4 years), the participant has the option to have the current program extended up to the maximum duration of 5 years, transfer to another institution for1 additional year, or return home and fulfill the 2-year bar.

nihao2009UID: 2641638

急盼各位帮忙呀！！！先行谢过了！！！

nihao2009UID: 2641638

自己顶一顶吧。

icepoint02UID: 2704787

我有完全类似的情况，不知楼主如何解决的？盼回复啊！基金委要你必须回国吗？回国是transfer到新学校后回国的还在此之前回国的。出来签证顺利吗？