请问：（一）他搬到加州去，就不会被遣返吗
-No unless he is caught by police (e.g. he makes any crime). But the consequence of unlawful presence is serious, e.g. he can not get the green card or legal status anymore unless he marries a US citizen.
（听说加州接受非法移民？哪里能查到正式的说法）？
-I have never heard it.
（二）如果他黑下来了，我作为他J1的sponsor，要承担什么后果吗（我自己是绿卡）？谢谢指教（能给出有关法规链接最好）。
-No. By the way, you are not his J-1 sponsor, and his J-1 sponsor is your employer.
（他是J1 Researcher，国际办公室说最多只能在美国待一年，不能延、不能转；像他这种，能找个community college之类的转成 J1 student吗？谢谢。）
-No. J-1 holder can not change status within US unless he gets J-1 waiver, but he may go to China to get the F-1 visa to come back to study without J-1 waiver.
