What happens to visa in old passport once the new passport is obtained?

whatsgoingon

New Member
I have the H1B visa stamped in my passport but soon my passport will be expiring. When I obtain a new passport do I again have to get the visa stamped from an U.S Consulate outside U.S or will my existing visa still be valid and I just have to carry my old passport alongwith the new passport during travel outside U.S
 
Advise Needed CP or 485

Hi Friends,
  I desperately need help !!!! Here is the situation.
  I used to work for company "A" on H1 as hourly and applied Labour
and before My labour got cleared , I came to bench with out pay (they didn\'t revoked my H1) and i joined Company \'B\' on TN visa (as I became canadian) .Company "A" doesn\'t know that i joined other company . mean while my labour got cleared and they applied for I 140 for CP in Canada. I-140 will be cleared in 3 weeks .
what should i do ,should i go for CP or 485 ? should i Inform Company A that iam working for Company \'B\' ? will it be problem as iam on TN ?
I appreciate any suggestions or past experiences . Please Help me
Thanks a lot
Neha!!!
 
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