1What is Form I-797?
Form I-797 is the notice USCIS mails to confirm it took an action on a petition or application. It is not a single document. It is a family of notices, and the suffix letter after the number (A, B, C, or E) tells you which action it represents. Most people first see an I-797 when their employer's H-1B petition is approved.
The notice is printed on security paper and carries a receipt number, the petitioner and beneficiary names, the form type that was filed (like an I-129), and the dates the approval covers. It does not by itself grant a visa or guarantee entry to the US. It is proof of what USCIS decided, which is a different thing from permission to enter the country.
2I-797A vs I-797B vs I-797C vs I-797E: what is the difference?
I-797A: Approval With a New I-94
Issued when the beneficiary is already in the US and the petition includes a change or extension of status. The bottom of the form carries a replacement I-94 with new admission dates. Keep it. It is your proof of status.
I-797B: Approval Without an I-94
Issued when the petition is approved but status is not changed inside the US, typically because the person will get a visa stamp abroad and enter on it. There is no attached I-94 because admission happens at the border.
I-797C: Notice of Action
The workhorse. Used for receipt notices, rejections, transfers, fee receipts, biometrics appointments, and rescheduling. An I-797C is not an approval. Read the body text to see exactly what action it reports.
I-797E: Request for Evidence
Sent when USCIS needs more documentation before it can decide. It lists what is missing and a deadline. Missing the deadline usually means a denial, so this is the one you act on fastest.
The letter is the whole story. Each variant means a specific thing, and people regularly confuse them because the layout looks nearly identical. Here is what each one actually signals.
3How do you read an I-797 approval notice?
Start at the top left. The receipt number is 13 characters: three letters for the service center (like WAC, EAC, LIN, or SRC) followed by ten digits. That number is what you type into the USCIS case status tool and what your attorney quotes. Write it down somewhere safe, because you will be asked for it for years.
Next, find the validity dates. On an I-797A or I-797B these define the window the petition covers, and for H-1B that window matters for your authorized stay and for any visa stamp. The notice also names the petitioner (your employer) and the beneficiary (you), plus the underlying form, usually an I-129 for work petitions. If you are an employer running this process, confirm the company has a real filing record first using the H-1B Sponsorship Checker.
- Receipt number drives every status check and follow-up inquiry
- Validity dates define your authorized petition window
- Notice type in the header (Approval Notice, Receipt Notice, etc.) tells you the action
- The detachable I-94 at the bottom of an I-797A is your in-country status proof
Before you trust a petition, confirm the employer actually files. Check any company against DOL and USCIS data.
Check Sponsorship History4What should you do if you lose your I-797?
A lost I-797 is recoverable, but it takes time. Your employer or attorney usually keeps the original or a certified copy, so ask them first. If the original is genuinely gone, you file Form I-824 to request a duplicate approval notice, and that request runs on its own USCIS queue that can take many months.
For an H-1B change of employer, the I-797 from the original petition is also what your new employer relies on when filing a transfer. The link between your current approval and a future move is covered in the H-1B transfer guide, which explains why the I-797 receipt number and approval are the documents a transfer petition is built on.
5Where can you verify the petition behind your I-797?
Your I-797 references a petition your employer filed. You can sanity-check that employer's broader sponsorship record through public DOL and USCIS disclosure data rather than taking a recruiter's word for it. ShouldApply organizes that data so you can review a company's H-1B and green card sponsorship history before you accept an offer that depends on it.
The notice itself is authoritative for your specific case. But if you are choosing between employers, the filing history tells you which ones actually finish what they start. Type a company name into the H-1B Sponsorship Checker to see its filing volume and approval pattern.
Written by
Jesse Johnson
Founder, ShouldApply
Founder of ShouldApply. I write about job search strategy, hiring, and how to spend your time on opportunities that actually fit. Full bio →
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Frequently Asked Questions
No. The I-797 is a USCIS notice confirming a petition was approved or an action was taken. A visa is a stamp placed in your passport by a US consulate abroad that lets you request entry at a port of entry. You can hold an approved I-797 and still need a separate visa stamp before you travel to the US. They are issued by different agencies for different purposes.
For most work categories, yes, you should carry the original or a copy when you travel internationally. When you return to the US, the officer at the port of entry may ask to see proof of the approved petition that supports your visa. The I-797A also carries the I-94 that proves your authorized stay. Losing it before travel can create real delays, so make copies.
An I-797C is a general Notice of Action, not an approval. It covers receipts, transfers, rejections, fee acknowledgments, biometrics appointments, and rescheduling. You have to read the body of the notice to know which action it reports. Do not assume an I-797C means your case was approved, because it just as often confirms USCIS received your filing or needs you to appear for biometrics.
An I-797A includes a new I-94 at the bottom because status was changed or extended while you are inside the US. An I-797B approves the petition but does not include an I-94, because you are expected to obtain a visa stamp abroad and be admitted at the border. The practical difference is whether your status changes domestically or through consular entry.
Ask your employer or immigration attorney first, since they usually keep the original or a certified copy. If it is truly lost, you file Form I-824 with USCIS to request a duplicate approval notice. That request processes on its own queue and can take many months, so check the live USCIS processing-times dashboard for the current range at the relevant service center.
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Know the employer behind the petition.
An I-797 confirms one case. Before you build a career on a sponsorship, check the company's full filing history using public DOL and USCIS data.
Check Sponsorship History