My H1B visa stamp expires in December, but my H1B petition was just approved through 2018. If I travel abroad, and plan to return before my visa stamp expires, do I still have to get a new stamp?
Answer The visa 'stamp' can be used as an entry document through its expiration date. This document can be used with the new extension, although that sometimes causes issues with "short" I-94s at the port of entry. So, be sure to present the latest I-797 approval...