An approved Form I-129 confirms that the job and the worker qualify for a specific nonimmigrant classification, but it is not the finish line. What happens after Form I-129 is approved depends on where the worker is standing when the approval issues. A worker already inside the United States on a change-of-status or extension request has their status updated by the approval itself. A worker abroad still needs a visa stamp from a U.S. consulate before traveling, and everyone still needs to clear a border officer, complete employment verification, and handle a short list of follow-up tasks before payroll runs cleanly.
The I-797 Approval Notice
USCIS issues Form I-797, Notice of Action, as the official proof that the petition was approved.1U.S. Citizenship and Immigration Services. Form I-797 Types and Functions It carries a 13-character receipt number (three letters, ten digits) that you will use at every later step, along with the classification granted and the validity dates.2U.S. Citizenship and Immigration Services. Receipt Number
The employer or their attorney usually gets the original. Ask for a copy right away and check every field against the petition: name spellings, date of birth, classification, and validity dates. A typo on the I-797 can derail a consular interview or an inspection at the border weeks later.
If USCIS made a typographical error, the employer or worker can request a correction through the USCIS e-Request system, submitting the receipt number, a description of the error, and any A-Number.3U.S. Citizenship and Immigration Services. Typographic Error Fixing mistakes before the visa stage is far easier than after.
If You Are Already in the United States
When the I-129 included a change-of-status or extension request and the worker is already lawfully present, the I-797 does the work of updating status. USCIS attaches a new I-94 directly to the approval notice, and status changes on the effective date shown on the notice. No consular trip is needed.
The worker can start (or continue) employment with the petitioning employer on the start date printed on the I-797. One caution: the I-797 is not a travel document. Any future international trip will still require a visa stamp at a consulate before reentry.
If You Are Outside the United States
A worker abroad has to complete consular processing to get a visa stamp before flying to the U.S. That involves an online application, supporting documents, a fee, and an in-person interview at a U.S. embassy or consulate.
Filing the DS-160
The first step is Form DS-160, the Online Nonimmigrant Visa Application, filed through the Department of State’s Consular Electronic Application Center.4Department of State. DS-160 Online Nonimmigrant Visa Application It asks for biographic information, travel history, employment details, and the I-797 receipt number. Inconsistencies between the DS-160 and the I-129 petition can trigger extra review or a refusal, so cross-check both before submitting.
What to Bring
Along with the DS-160 confirmation page, the worker needs:
- A valid passport, generally good for at least six months beyond the intended stay unless the worker’s country has an exemption agreement.5U.S. Customs and Border Protection. Six-Month Validity Update
- A recent color photograph on a plain white or off-white background, meeting the State Department’s specifications.6U.S. Department of State. Photo Requirements
- A copy of the I-797 approval notice showing the receipt number and validity dates.
- Proof of the MRV visa application fee, currently $205 for petition-based work categories including H, L, O, P, Q, and R.7U.S. Department of State. Fees for Visa Services
Keep the fee payment receipt. It is needed to schedule the interview and must be presented at the consulate.
The Interview
At the appointment, consular staff take fingerprints and a digital photo to verify identity.8U.S. Department of State. Safety and Security of US Borders Biometrics The officer then asks questions about the job, the employer, and the applicant’s plans. If approved, the visa is printed inside the passport. Approval is not guaranteed; the officer has discretion to request more information or refuse.
Administrative Processing
Sometimes the officer cannot decide at the window and places the case into administrative processing. The applicant is told at the end of the interview. Timelines vary and are not covered by the wait-time estimates on the State Department’s website. If additional documents are requested, you have one year from the refusal date to submit them. Miss that window and you start over with a new application and a new fee.9Travel.State.Gov. Administrative Processing Information
At the Port of Entry
A visa stamp lets you travel to a U.S. port of entry. It does not by itself admit you. A Customs and Border Protection officer inspects your documents and decides whether to admit you and for how long. Workers in H-1B, L-1, and several other classifications can be admitted up to 10 days before the petition’s validity period begins and up to 10 days after it ends.10eCFR. 8 CFR 214.1 – Requirements for Admission, Extension, and Maintenance of Status
On admission, CBP creates an electronic I-94, the arrival record showing your classification and the date you must leave or extend. Paper I-94s are no longer issued automatically at airports and seaports; retrieve yours from the CBP I-94 website or the CBP One app.11U.S. Customs and Border Protection. Arrival Departure Forms I-94 and I-94W Check the record immediately. Errors in the name, classification, or admission date should be corrected at a CBP Deferred Inspection Site; errors originating from USCIS require contacting USCIS or filing Form I-102.12Homeland Security. I-94 I-95 Frequently Asked Questions
Starting Work and Completing the I-9
Employment is tied to the employer that filed the petition. Working for a different company without a new or amended I-129 is a status violation, and the wage and worksite must match what the petition described.13U.S. Citizenship and Immigration Services. Form I-129 Instructions for Petition for a Nonimmigrant Worker
For Form I-9 verification, a foreign passport presented together with the I-94 showing nonimmigrant work authorization qualifies as a single “List A” document covering both identity and employment eligibility.14U.S. Citizenship and Immigration Services. Form I-9 Acceptable Documents The employer must complete Section 2 within three business days of the first day of work.15USCIS. Form I-9 Employment Eligibility Verification
Getting a Social Security Number
A work-authorized nonimmigrant needs an SSN for payroll and taxes. Some workers can request one during entry processing, but most petition-based workers apply in person at a Social Security Administration office after arrival.
Bring originals, not photocopies. You need to prove identity, age, and work-authorized status, using at least two separate documents:16Social Security Administration. Learn What Documents You Will Need to Get a Social Security Card
- Identity and work authorization: an unexpired foreign passport with the current admission stamp or an I-94 showing a work-authorized class of admission.
- Age: a foreign birth certificate if you have one. If it cannot be obtained within 10 business days, SSA may accept a passport or DHS-issued document.
Start the application online at ssa.gov, then schedule an in-person appointment to present the originals.17Social Security Administration. Foreign Workers and Social Security Numbers Processing can take several weeks, and the employer may need a temporary payroll arrangement in the meantime.
Bringing Spouses and Children
Spouses and unmarried children under 21 can apply for dependent status matched to the principal worker’s category: H-4 for H-1B, L-2 for L-1, O-3 for O-1, and so on. Each family member files a separate DS-160 and attends an interview, though the principal’s DS-160 can pre-populate shared information.18Travel.State.Gov. DS-160 Online Nonimmigrant Visa Application Frequently Asked Questions A parent can complete and sign for a child under 16.
Dependent status generally does not include work authorization. Certain H-4 spouses can apply for employment authorization when the H-1B principal is the beneficiary of an approved Form I-140 or holds H-1B status under the American Competitiveness in the Twenty-first Century Act.19U.S. Citizenship and Immigration Services. Employment Authorization for Certain H-4 Dependent Spouses L-2 spouses may also be eligible in certain circumstances.
Reporting Address Changes
Every nonimmigrant worker must report a change of residential address to USCIS within 10 days of moving, either through a USCIS online account or by mailing a paper Form AR-11.20U.S. Citizenship and Immigration Services. How to Change Your Address Missing this is a separate violation that can complicate later filings.
Staying Past the Approval Period
The I-797 is valid only through the dates it lists. To keep the worker beyond that period, the employer files a new I-129 requesting an extension before the current status expires. The worker does not need to leave the country for an extension.21U.S. Citizenship and Immigration Services. FAQs for Individuals in H-1B Nonimmigrant Status
If the extension is filed on time and the underlying status expires while it is still pending, the worker can continue working for the same employer for up to 240 days past the expiration date. If USCIS denies the extension inside that window, work authorization ends when the employer receives the denial. The employer also has to file an amended petition if the duties, worksite, or other material conditions change during the validity period.
If the Job Ends Early
When employment ends before the petition expires, workers in E-1, E-2, E-3, H-1B, H-1B1, L-1, O-1, and TN classifications get a grace period of up to 60 consecutive days, or the remainder of the authorized validity period, whichever is shorter.22U.S. Citizenship and Immigration Services. Options for Nonimmigrant Workers Following Termination of Employment The clock starts the day after the last day of paid wages.
You are considered to be maintaining status during those 60 days but cannot work unless separately authorized. Use the time to have a new employer file an I-129, apply for a change to a different nonimmigrant status, or apply for adjustment of status if eligible. The grace period is available once per authorized petition validity period and ends the moment you leave the country.
Short Trips and Automatic Visa Revalidation
Visa stamps can expire while status is still valid. For brief trips of 30 days or less to Canada, Mexico, or an adjacent island, a worker holding a valid I-94 may reenter without obtaining a new visa stamp under the automatic revalidation rule.23U.S. Department of State. Automatic Revalidation It does not apply if you applied for a new visa that is still pending or was denied, stayed abroad longer than 30 days, traveled to a country not covered by the provision, or are a national of a state sponsor of terrorism.