Thanks a lot! That's really helpful!

Thank you for answering my question! So does this mean that once I become a resident alien (no matter I'm in F or J), I'll always be a resident alien (assuming ...

Hi bine22, I have another question on whether I'll be eligible for the tax exemption treaty between US and China for researchers (<a rel="nofollow" target="_bla...

Ok... Indeed I may go to a 2nd round postdoc, then I could be exempted again...

Thank you so much for such a detailed explanation! It seems that there're just so many rules to read... Anyway my postdoc position last only 2 years so I guess ...