Is it ok to travel on an existing B-1visa when I have an approved H1B petition, but have not yet obtained an H1B stamp?
Answer The H1B approval for consular processing doesn't void the B-1 visa. So, the B-1 could be used for valid B-1 travel even after the H1B approval. However, in the event that the CBP officer knows about the H1B, s/he may have serious concerns about whether...