I-797B vs I-797A: Status, Work, and Unlawful Presence

Form I-797A and Form I-797B look similar and share the same “Notice of Action” title, but they do very different things. An I-797A approves your petition and includes a new I-94 at the bottom that updates your nonimmigrant status inside the United States, so you can stay and work under the new classification right away. An I-797B approves only the underlying petition. It carries no I-94, does not change your status, and requires you to leave the country, obtain a visa at a U.S. consulate, and be admitted at a port of entry before you can work. Mixing up the two is one of the more costly mistakes in employment-based immigration.¹

What Form I-797A Does

USCIS issues a Form I-797A when it approves your petition and, in the same decision, grants a change of status or extension of stay while you are physically in the United States. The defining feature sits at the bottom of the notice: a tear-off I-94 Arrival-Departure Record that USCIS describes as a “replacement Form I-94.”¹ That replacement I-94 lists your new classification (H-1B, L-1, O-1, or whatever category was approved) and the date your authorized stay ends. It is the document that actually controls your legal status.

Because approval and status update happen in the same step, you can begin or continue working under the new classification once the start date on the I-94 arrives. There is no gap in lawful presence, no visa interview, and no need to leave the country. Employers and government agencies verifying your status will look at the I-94 portion of the notice, so keep it intact.

What Form I-797B Does

A Form I-797B tells you the petition was approved on the merits, and nothing more. There is no I-94 at the bottom. USCIS describes this notice as being “issued for approval of an alien worker petition.”¹ Federal statute makes the limit explicit: approval of a worker petition “shall not, of itself, be construed as establishing that the alien is a nonimmigrant.”²

You typically end up with an I-797B rather than an I-797A in one of these situations:

You were outside the United States when USCIS decided the case. The agency cannot change your status domestically if you are not in the country, so the I-797B goes to the designated consulate for visa processing.
The petition did not request a change of status. Your employer either left that section of the I-129 blank or affirmatively asked for consular processing.
Your previous status lapsed before adjudication. USCIS generally cannot grant a change of status if you fell out of status while the case was pending, so it approves only the petition.
USCIS approved the petition but denied the change-of-status portion as a matter of discretion, even though you asked for it.

The notice identifies which U.S. consulate or port of entry has been notified of the approval. That notification is what allows the consular officer abroad to pull up your case for the visa interview.

Why the Difference Matters for Status and Work

With an I-797A, you are in status. The attached I-94 proves it, and you can work under the approved classification starting on the date it lists. With an I-797B, you have an approved petition and nothing else. You are not authorized to work under the new classification, and your right to stay in the country depends entirely on whatever I-94 you already held from your previous status.

Here is the scenario that catches people. Your employer files an H-1B petition with a change-of-status request. USCIS approves the petition and denies the change of status. You receive an I-797B. If your old I-94 from a previous classification has already expired, you have no valid status in the United States, even though you are holding an approval notice. The petition on its own is not a permission slip to remain in the country, and it is not work authorization.

Unlawful Presence If You Misread an I-797B

Misreading which notice you hold can trigger long consequences. Under federal law, a noncitizen who accumulates more than 180 days of unlawful presence and then departs the country is barred from returning for three years; more than one year of unlawful presence extends the bar to ten years.³ Those bars kick in when you later seek admission, so someone who overstayed on the assumption that an I-797B kept them in status can be locked out for years.

The clock starts the day after your last valid I-94 expires. If your I-797B arrives and your old status has already ended, unlawful presence accumulates from that moment. The approved petition does not pause or reset the count. The first thing to check on any I-797 is the bottom of the page: no I-94 tear-off means you need to plan an exit and consular appointment, not settle in.

What to Do After Receiving an I-797B

An I-797B sends you through consular processing. Skipping any step delays your entry.

Complete the DS-160 online nonimmigrant visa application through the Department of State.⁴ Pay the machine-readable visa fee: $205 for petition-based categories like H-1B, L-1, and O-1, or $185 for non-petition categories.⁵ Some nationalities also pay a separate reciprocity fee that varies by country and visa class.

Schedule your interview at the consulate designated on the I-797B. Bring the original notice, your passport, and any documents the post requires. The consular officer verifies your approved petition against government records during the interview. If the visa is approved, processing and delivery often run about one to two weeks from the interview date, though times vary by consulate.

Once you have the visa stamp, travel to a U.S. port of entry. A Customs and Border Protection officer reviews the visa and I-797B and admits you. CBP then issues an electronic I-94 record that grants you nonimmigrant status and work authorization. You can pull the record at i94.cbp.dhs.gov to confirm your classification and admit-until date are correct.⁶ That admission completes the cycle the petition started.

How the Notice Type Affects Your Family

Spouses and children in dependent classifications (H-4, L-2, O-3, and similar) file their own Form I-539 to request a change of status or extension of stay.⁷ They do not ride on the principal worker’s Form I-129.

If the principal receives an I-797A, dependents do not automatically get updated status. Each family member needs their own approved I-539. A dependent whose I-539 is still pending remains in a period of authorized stay while waiting, but that is not the same as holding the new status.

If the principal receives an I-797B and must process through a consulate, dependents typically do the same at the same post, using the principal’s I-797B as supporting documentation for their own dependent visas. Forgetting to file for dependents is a common oversight that leaves a spouse or child out of status even after the principal worker’s situation is resolved.

Check Your I-94 for Errors

Whether your I-94 came from an I-797A approval or from CBP at the port of entry, look at it right away. Errors in the classification code, expiration date, or spelling of your name can cause problems with employers, future filings, and reentry. Use the CBP site at i94.cbp.dhs.gov to retrieve and print your most recent record.⁶

If an I-94 attached to an I-797A contains an error, contact USCIS to request a correction. If the error is on an I-94 issued at a port of entry, CBP handles corrections through a separate review process on its website. A wrong expiration date or classification can make you appear out of status on an E-Verify check or on your next USCIS filing, and fixing it early is far simpler than explaining the discrepancy years later during a renewal or green card application.

1
U.S. Citizenship and Immigration Services. Form I-797 Types and Functions
2
Office of the Law Revision Counsel. 8 USC 1184 – Admission of Nonimmigrants
3
Office of the Law Revision Counsel. 8 USC 1182 – Inadmissible Aliens
4
U.S. Department of State. Online Nonimmigrant Visa Application DS-160
5
U.S. Department of State. Fees for Visa Services
6
U.S. Customs and Border Protection. I-94 Official Website for Travelers Visiting the United States
7
U.S. Citizenship and Immigration Services. I-539 Application to Extend/Change Nonimmigrant Status