My husband was told at his POE that he could work, but some employers would need the physical card if they use E-Verify. In Florida, Beginning July 1, 2023, Florida requires all private employers with 25 or more employees to use E-Verify to determine a new employee’s eligibility to work in the United States. Luckily his only took a week after crossing to arrive at our house. He did apply for the SSN with his Immigration application.