You can start work as soon as you you receive the H1B receipt.

來源: 於 2008-10-17 18:50:14 [舊帖] [給我悄悄話] 本文已被閱讀：次

You can start work as soon as you you receive the H1B receipt. However, you should think about your back-up plan if your transfer is denied. Usually there is a small chance, but you still have the risk.