How do I, as an employee, take action on a Tentative Nonconfirmation (mismatch) and correct my records?

You should refer to the Further Action Notice provided to you by your employer if your case resulted in a mismatch, and then correct your immigration records after you have resolved your mismatch.  You can also review the steps to resolve a mismatch on the E-Verify Employee’s page under How to Process a Tentative Nonconfirmation.  Correcting your record after your mismatch is resolved may prevent future mismatches.