Many H-1B workers conflate "H-1B approval" with "H-1B visa." They are not the same thing. Your I-797 approval gives you legal status inside the US, but you cannot re-enter the country after international travel without a valid visa stamp in your passport. This guide walks through the stamping process end to end, including the part that catches most people: 221(g) administrative processing.

If you obtained H-1B status through a change of status (not consular processing), this is especially important. You technically don't have an H-1B visa stamp yet — and the first time you leave the US, you'll need to get one before returning.

When do you need visa stamping?

The first time you re-enter the US after H-1B activation, if your prior visa stamp was F-1 or another category.
Any time you travel internationally and your H-1B visa stamp has expired.
After changing employers, if you want a new stamp showing the current employer (not strictly required, but recommended).

Step 1: Complete Form DS-160

The DS-160 is the online non-immigrant visa application. Fill it carefully — discrepancies between your DS-160 and your interview answers are the leading cause of 221(g) administrative processing delays.

Common DS-160 pitfalls

Employment dates: Match your I-129 exactly. A "self-employed" period that wasn't on your H-1B petition raises flags.
Travel history: List every country visited in the past five years, even short layovers.
US trips: List every US entry, even short business or tourist trips.
Education: Match degree and institution names exactly to your H-1B petition.

Step 2: Pay the MRV fee and schedule the interview

The MRV (Machine-Readable Visa) fee is $205 for H-1B as of 2026. Wait times vary wildly by consulate:

Mumbai, Hyderabad, Chennai: Often 2–3 months for an appointment.
Toronto, Vancouver, Montreal: Typically under 30 days.
London, Paris, Frankfurt: 2–6 weeks.
Mexico City, Tijuana: 30–60 days.

You can apply at any US consulate, not just the one in your home country. "Third-country national" visa stamping in Mexico or Canada is a common pattern for H-1B workers from India and China.

Step 3: The interview

Documents to bring

Passport (valid 6+ months beyond intended stay).
DS-160 confirmation page.
Interview appointment letter.
I-797 approval notice (original or copy).
LCA (Labor Condition Application) — most employers provide this.
Employment verification letter on company letterhead, signed within the last 30 days.
Recent pay stubs (last 3 months) and most recent W-2 if you've already started H-1B work.
Diploma and transcripts (originals or certified copies).
Project descriptions, organizational chart, and client contracts if you're filed by a consultancy.

The interview itself

Most H-1B interviews last under 5 minutes. The officer typically asks:

Where do you work and what do you do?
Who is your client (if a consultancy)?
What is your salary?
Have you been outside the US recently?
When do you plan to return to the US?

Answer briefly and directly. Long, defensive answers raise more questions than they resolve.

221(g) administrative processing

If the officer needs more information, you'll get a colored slip — typically referred to as a "221(g)." This is not a denial; it's a pause. Common 221(g) reasons:

Additional security clearance for STEM fields (Technology Alert List).
Employer-employee relationship verification for consultancy filings.
Cross-verification between consulate, employer, and USCIS records.
Document submission shortfall (you can usually upload missing documents online).

Most 221(g) cases clear within 4–8 weeks, but some — especially Technology Alert List flags — can stretch 3–6 months. Plan international travel accordingly: do not book non-refundable return flights tighter than two weeks past the interview date.

Visa validity and entry stamp

Your H-1B visa stamp is valid for the period printed on the stamp (often 1–3 years, varying by country of citizenship). The stamp expiry is not the same as your H-1B status expiry — your status comes from the I-797 and I-94.

At the port of entry, the CBP officer admits you in H-1B status until the I-797 end date. They issue an electronic I-94 you can retrieve from i94.cbp.dhs.gov within 24 hours. Save a copy each time you re-enter — HR and immigration attorneys will ask for it.

Stamping while on H-1B transfer

If you've changed employers and want a new visa stamp showing the new employer, you'll need:

The new I-797 approval (or receipt if traveling on portability).
Employment verification letter from the new employer.
Most recent pay stubs from the new employer.
LCA for the new role.

You can technically re-enter on an old visa stamp + new employer documentation, but a new stamp is cleaner and avoids questions at future entries.

What 221(g) administrative processing actually looks like

Take Ahmed, a senior cybersecurity engineer who traveled to Toronto in May 2026 for his H-1B visa renewal. The interview lasted four minutes. The officer placed his case in 221(g) administrative processing for "additional security review" — likely a Technology Alert List flag for his role.

"I had a return flight to San Francisco booked for the following Tuesday. When the officer handed me the pink slip and said 'we'll let you know,' my stomach dropped. I ended up working remotely from Toronto for seven weeks. My company was supportive but it was the longest seven weeks of my life. The visa eventually issued. I changed my travel rule: I don't book non-refundable returns within four weeks of a consulate interview anymore."

Takeaway: 221(g) is not rare for STEM workers. Plan flexible travel and have a remote-work plan with your employer in case you're stranded abroad longer than expected.

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