H4需要出美国国境再回来。老公现在为A公司工作，但是已经拿到B公司的offer并且在办理H1B Transfer。公司也要H4递交材料一起办H4 Transfer。老公预计11月30号结束A公司的工作，然后12月1号开始为B公司工作；H1B transfer 的材料预计10月底递交；H4在11月中旬出境，下旬入美国国境。
请问8老师：1. H1B Transfer 期间，H4可以用以前用A公司获得的H4 Visa出境入境么？
-Depends on whether your spouse still works for A Company when you return. If yes, then you are OK to enter US using the H-1 approval notice from A Company. If your spouse has worked for B Company at that time, then you has to use the H-1 approval notice from B Company (you need to wait for the H-1 transfer is approved in this case).
需要什么准备什么材料呢？-Same as you did before.
Visa有效至明年，上面有A公司信息 _It does not matter. You can use this visa to enter US even if your spouse works for B Company with B Company H-1 approval notice.
。2. H4 Transfer是必须的吗？
-Not need to do it if you will leave US and use the H4 visa to come back.
是否可以回美后自己递交？
-Yes, but you only need to extend it before your H-4 I-94 expires in the future.
非常感谢8老师。
