
Originally Posted by
Kanmani
Q,
Yes , Zenmaster is correct.
This is derived from the H1b Portability provisions of AC21 act (The American Competitiveness in the Twenty-First Century Act, year 2000). H-1B employees can start working for the new employer as soon as H-1B transfer petition is filed with USCIS. ( Filing proof = Receipt notice from uscis) . Previously, the employee must wait for the approval notice .
H1b to H1b ------ Can start after filing petition
H4/F1 to H1b ------ Must wait for H1b approval notice
What happens if the transfer petition got denied after joining company B?
Different opinions across the aisle .
Most common interpretation is that the last approved H1b stays valid as long as the employer (company A ) has not cancelled it. This stands true only after the second H1b petition is denied .