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D-1 Visa - Frequently Asked Questions


What is a D-1 crew member certification?

Performance of long shore work at U.S. ports by D-1 crew members on foreign vessels is generally prohibited with a few exceptions. One such exception requires an employer to file an attestation stating that it is the prevailing practice for the activity at that port, there is no strike or lockout at the place of employment, and that notice has been given to U.S. workers or their representatives.


What is a Port of Entry?

To carry out USCIS's inspection requirements, the Attorney General, through the USCIS Commissioner, has designated ports of entry for foreign nationals arriving by vessel or by land transportation.

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What are the classes of ports of entry?

  • Class A ports of entry are ports at which any foreign national may apply for entry
  • Class B ports of entry are ports designated for foreign national's who at the time of applying for admission are permanent residents in possession of a foreign national registration receipt card (Form I-151 or I-551; 'Green Card'), a valid nonresident foreign national border crossing card, or who are admissible without documents under documentary waiver provisions
  • Class C ports of entry are ports designated for foreign nationals arriving in the U.S. as a vessel or aircraft crewmen
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