Understanding Your I-94 Arrival/Departure Record: A Critical Guide for Crew Members and Offshore Workers

When you enter the United States as a marine crew member, air crew, or offshore worker, you receive one of the most important documents for your stay—the I-94 Arrival/Departure Record. Yet many crew members misunderstand what this document means and how it affects their legal status and length of stay in the country. This guide breaks down everything you need to know about your I-94 form, why it matters more than you think, and what you should verify before you leave the port or airfield.

What is the I-94?

The I-94 Arrival/Departure Record is your official proof of legal entry and authorized stay in the United States. It is the document that immigration authorities issue to you when you arrive at a U.S. port of entry, whether that's a seaport, airport, or land border. Think of it as your legal permission slip for how long you can remain in the country.

Your I-94 record contains critical information about your U.S. stay:

• Date of Entry: When you officially entered the United States

• Visa Class: The category of your visa (B1, B2, C1/D, etc.) that determines your purpose for being in the U.S.

• Admit-Until Date: The expiration date of your authorization to stay—this is the date you must leave the country

• Entry Status: Your classification upon arrival, which may differ from your visa category

The I-94 form itself is typically issued electronically for most visitors, though some crew members and certain visa types may receive a physical version. You can access your electronic I-94 record through CBP's official website if you need to verify your information.

The Critical Difference: Visa vs. I-94

Here's where many crew members get confused—and this confusion can lead to serious problems:

Your visa does NOT control how long you can stay in the United States.

Let that sink in. Your visa—whether it's a B1 visa, C1/D visa, or any other type—allows you to travel to the U.S. and present yourself at a port of entry. It is your entry ticket. But it is not your permission to stay.

Your I-94 controls how long you can actually stay.

The admit-until date on your I-94 is the date by which you must depart. If your I-94 says you must leave on June 15, you must leave by June 15—even if your visa doesn't expire for another year. This distinction is absolutely critical for marine crew members and offshore workers, whose schedules, vessel assignments, and crew change dates often shift.

Example: You could have a valid B1 OCS visa that doesn't expire until 2027, but your I-94 might only allow you to stay until next week. Your visa status is irrelevant once you're in the country—it's the I-94 that matters.

Why Your I-94 is Critical for Crew Members

For those working in marine, air, or offshore sectors, the I-94 creates a hard deadline for your legal presence in the United States. Here's why this is especially important:

• Crew Change Timing: If your crew change is delayed or rescheduled, you cannot simply extend your stay. Your I-94 admit-until date is non-negotiable without special authorization.

• Vessel or Aircraft Departure: You must be off the vessel, aircraft, or work site and departed from the U.S. by your I-94 expiration date. Overstaying, even by one day, can have serious immigration consequences.

• Future U.S. Entry: Violations of your I-94 date can affect your ability to enter the United States in the future, damaging your career as a crew member.

• Employment Verification: Your employer and vessel operators rely on your valid I-94 status to verify you're legally authorized to work in the U.S.

What You Must Verify on Your I-94 Immediately Upon Entry

The moment you receive your I-94 record—whether it's printed or you access it electronically—take time to review every detail. Errors on your I-94 can complicate your stay and create legal headaches. Here's your verification checklist:

1. Your Full Name

• Check that your name is spelled correctly and matches your passport exactly.

• Misspelled names can cause problems during departure or future entry.

2. Your Passport Number

• Verify that your passport number is accurately recorded.

• This number links your I-94 to your identity and your travel documents.

3. Your Visa Category

• Confirm that the visa class listed matches the visa category in your passport.

• For crew members, this is especially important—you should see B1, C1/D, B1 OCS, or another crew-related category.

4. Your Admit-Until Date

• This is the most critical field. This is your hard deadline to leave the U.S.

• Compare it to your expected crew change date, vessel schedule, or offshore assignment end date.

• Make sure it aligns with your actual plans.

5. Your Entry Status

• The entry status may differ from your visa category and shows how CBP classified you upon arrival.

• For crew members joining vessels or aircraft, this should accurately reflect that purpose.

⚠️ Critical: If Something is Wrong

If you discover any error on your I-94 form, report it immediately to CBP or request a correction. Do not wait. Do not assume it will sort itself out. Errors can escalate into serious problems:

• Contact CBP's I-94 correction service if you spot inaccuracies.

• Contact your visa sponsor or employer immediately.

• Document everything and keep copies of your communications.

• If leaving the U.S. soon, inform the departure port or airport of any discrepancies.

Special Considerations for Marine and Air Crew

Different crew categories have different I-94 requirements and considerations:

B1 OCS (Open Crew Standard) Visa Holders

If you entered on a B1 OCS visa:

• Your I-94 should reflect B1 status or "in transit crew member" classification

• The admit-until date might be shorter than other visa categories—typically 29 days or aligned to your crew change date

• Confirm the date aligns with your actual crew change schedule

C1/D Visa Holders (Crew Members in Transit)

The C1/D visa is specifically designed for crew members in transit:

• Your I-94 should clearly show a C1/D or transit crew status

• The admit-until date is usually very limited—sometimes just 2-7 days

• This is intentional; C1/D visas are meant for crew changes, not for extended stays in the U.S.

• Verify the date gives you enough time for your crew change procedures

B1/B2 Visa Holders in Crew Roles

If you hold a standard B1 or B2 visa and are working as crew:

• Some crew roles may be classified differently upon entry

• Ask the immigration officer to clarify your entry classification

• Ensure the admit-until date covers your assignment length

How to Access Your I-94 Record

If you didn't receive a physical I-94 card, you can access your electronic record:

1. Visit CBP.gov and use their I-94 lookup tool

2. Have your passport information and travel document number ready

3. Download and save a copy for your records

4. Keep this with your travel documents

What Happens If You Overstay Your I-94

Overstaying your I-94 admit-until date, even by a single day, can result in:

• Deportation proceedings

• Future visa denials or cancellations

• Employment restrictions in the United States

• Difficulty re-entering the U.S. for future assignments

• Potential bans on U.S. entry

For crew members whose livelihoods depend on traveling to the United States, an I-94 violation is career-threatening.

The Bottom Line

Your I-94 Arrival/Departure Record is not just a bureaucratic form—it is a legal document that controls your right to stay in the United States. Unlike your visa, which only gets you to the port of entry, your I-94 is what matters once you're here. Crew members, air crew, and offshore workers must treat the admit-until date on their I-94 as an absolute deadline.

Take five minutes to verify your I-94 information as soon as you receive it. Check the spelling of your name, your passport number, your visa category, and especially your admit-until date. If anything is wrong, report it immediately. If your dates don't align with your schedule, seek guidance from your employer or a qualified immigration professional.

Need Help with Your I-94?

If you're uncertain about your I-94 record, have questions about your admit-until date, or need help verifying your information, CrewVisas is here to help. Our team specializes in helping marine crew members, air crew, and offshore workers navigate U.S. immigration requirements, including I-94 verification and visa questions.

Don't guess about your legal status in the United States. Contact CrewVisas today for a free consultation about your I-94 Arrival/Departure Record or any other crew visa concerns.

CrewVisas provides specialized immigration support for maritime and offshore workers. This article is informational and does not constitute legal advice. Always consult with qualified immigration counsel for specific guidance on your I-94 or visa status.