YSC receipts come from the Potomac Service Center, USCIS's newest service center. Its workload has shifted over the years as USCIS balances cases between centers.
We've started it with YSC. Type the 10 digits from your notice to see what they mean. It all happens in your browser.
| Form | What it is |
|---|---|
| I-129 | Petition for a Nonimmigrant Worker |
| I-140 | Immigrant Petition for Alien Workers |
| I-485 | Application to Adjust Status (green card) |
| I-765 | Application for Employment Authorization |
Typical forms, not a complete list. USCIS moves workloads between offices over time.
In YSC2390112345, YSC is the Potomac Service Center, 23 is usually fiscal year 2023 (October 1, 2022 – September 30, 2023), 901 is the "computer workday" block and 12345 is the sequence number. That's the common reading of the format, not an official guarantee. This is an illustration, not a real case. See the receipt number decoder for the full format.
The prefix alone doesn't tell you how long you'll wait. Timing depends on the form, the category and the office actually working the case, which can change after a transfer. Check USCIS processing times by form, see what your current status means on USCIS case status meanings, or look up your case below for an estimate based on similar cases we track.
Enter the full receipt number from your I-797 notice to see the current status, what it means and what usually happens next.
Your receipt number starts with YSC and has 10 digits after it. Free, no sign-up.
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A receipt number starting with YSC belongs to the Potomac Service Center. YSC receipts come from the Potomac Service Center, USCIS's newest service center. Its workload has shifted over the years as USCIS balances cases between centers.
The Potomac Service Center is in the Washington, D.C. area.
Commonly I-129, I-140, I-485, I-765, among others. USCIS moves workloads between offices over time, so treat this as typical rather than a complete list.
Often, but not always. USCIS transfers cases between offices to balance workloads, and cases that need an interview go to a field office. Your receipt number, including the YSC prefix, stays the same after a transfer.
It depends mostly on the form and category, not the prefix alone. See USCIS processing times by form, or enter your YSC receipt number on our status check for an estimate based on similar cases we track.
They're commonly read as a 2-digit USCIS fiscal year, a 3-digit "computer workday" and a 5-digit sequence number. In YSC2390112345, 23 would be the fiscal year, 901 the workday and 12345 the sequence. This is common understanding, not an official guarantee.
General information, not legal advice. Office workloads change; confirm anything that affects your case with USCIS or an immigration attorney.