Is Form I-797 something I fill out and submit?

No. Form I-797 is a notice USCIS sends to you about an application, petition, or request you already filed — you never complete or submit an I-797 yourself. It communicates a receipt, an approval, a request for more evidence, or another action on your case.

I got an I-797C — does that mean my case was approved?

Not necessarily. I-797C is the general-purpose notice type, most commonly used as a receipt notice confirming USCIS has received your filing and assigned it a receipt number. The same form type is also used for rejections, transfers between service centers, appointment notices, and reopened cases — read the specific wording on your notice rather than assuming approval.

What happens if I ignore a Request for Evidence (RFE)?

If you don't respond by the deadline printed on the RFE notice, USCIS will most likely decide your case on the evidence already in the file — which, for most RFEs, means a denial, since the RFE was issued precisely because that evidence was judged insufficient. USCIS sends the RFE to the last address you have on file, and not receiving it because your address changed does not excuse a missed deadline.

Can I use my I-797 receipt number to track my case?

Yes. The 13-character receipt number printed on any I-797 (three letters followed by ten numbers) is what you enter on the USCIS online case status tool to track your case. Keep the physical notice or a copy of it somewhere safe — if you lose it, you'll need to contact USCIS directly to recover your receipt number.

USCIS Form I-797 Notice of Action Explained: Every Type (2026)

If you’ve filed anything with USCIS, you’ve received, or will receive, a Form I-797. It’s not a form you fill out — it’s USCIS’s own notice to you, and the exact letter after “I-797” tells you what kind of update you’re actually holding. Mixing these up (assuming a receipt notice is an approval, for example) is a common and avoidable source of confusion.

What Form I-797 is, in general

Form I-797, “Notice of Action,” is the umbrella notice USCIS uses to communicate about a pending or decided application, petition, or benefit request. USCIS issues it in several variants — the base I-797 plus I-797A through I-797F — each used for a different purpose in your case’s lifecycle. Every version carries a unique receipt number (13 characters: three letters followed by ten digits), which is what you use on USCIS’s online case status tool to track your case going forward.

The receipt notice: I-797C

This is usually the first notice you’ll receive after filing, typically within two to three weeks. It confirms USCIS has received your filing and gives you the receipt number. Critically, an I-797C receipt notice does not mean your case has been approved — it only confirms USCIS has it in hand. The I-797C form type is also reused for several other administrative purposes: rejections, transfers between service centers, biometrics appointment notices, and notices that a case has been reopened. Always read the specific text on the notice rather than treating every I-797C the same way.

Approval notices: I-797, I-797A, I-797B

I-797 (base form) — issued when USCIS approves your petition or application. It’s official evidence of the benefit granted.
I-797A — issued when USCIS approves an extension or change of status for someone already inside the US. It carries a tear-off section at the bottom that functions as your Form I-94, the official record of your admission and authorized stay — don’t discard it.
I-797B — issued for an approved petition on behalf of someone who still has further processing to complete, such as a beneficiary who will finish their visa process at a consulate abroad rather than inside the US.
I-797F — a transportation letter, letting an overseas applicant travel. It’s the one variant that technically isn’t a “Notice of Action.”

The one that needs a response: I-797E (Request for Evidence)

An I-797E means USCIS has reviewed your case and needs more documentation before it can decide — it is not a denial. The notice specifies:

the law and eligibility requirement in question,
what evidence you’ve already submitted,
what’s missing, and
a specific deadline to respond.

Miss that deadline, and USCIS will almost always decide the case on the record as it stands — which, since the RFE exists precisely because that record was judged insufficient, typically means denial. USCIS mails the RFE to the last address it has on file; if you’ve moved and didn’t update your address with USCIS, that does not extend or excuse the deadline. (Note: some secondary sources categorize RFE-type notices under I-797C rather than I-797E — go by the exact form letter and wording printed on your own notice, not a general rule of thumb.) See our full RFE response guide for how to put together a strong reply.

Quick reference

Notice	What it means
I-797C	Receipt (most common use) — or rejection, transfer, appointment, or reopened case
I-797	Approval
I-797A	Approval + I-94 tear-off (status change/extension, in the US)
I-797B	Approval, further processing still needed (often consular)
I-797E	Request for Evidence — response required by the stated deadline
I-797F	Transportation letter for overseas travel

If your notice doesn’t match what you expected

A notice that looks wrong — the wrong name, an unexpected rejection code, or a receipt number that won’t track — is worth acting on quickly rather than waiting. Compare it against your case status message online, and if you’re facing a tight RFE deadline and have the option, our premium processing guide covers when paying for faster adjudication is actually available.

This is preparation guidance, not legal advice — for anything case-specific or time-sensitive, confirm directly with USCIS or a licensed immigration attorney. VisaMet’s document checklist flags common missing-evidence patterns before you file, reducing your odds of an RFE in the first place. Join the waitlist for early access.

Sources: USCIS notice-type explanations as summarized by immigration-service platforms (Boundless, CitizenPath, Alma, Beyond Border Global) and RFE process guides (Lawfully, ImmigrationDirect) — confirm the specific wording and deadline on your own notice, since form-type usage (especially I-797C vs I-797E) is described inconsistently across secondary sources.