Published
The short answer
No. USCIS requires a certified English translation with a signed statement of accuracy. It does not require the translation to be notarized. A certified translation alone satisfies USCIS.
Why the confusion exists
Many other processes (some courts, foreign consulates, older guidance) do ask for notarization, so applicants assume USCIS does too. It does not. The current requirement is certification only.
When notarization is still worth it
If a specific court, consulate, or local agency tells you they require a notarized translation, add notarization. It is an inexpensive add-on layered on top of the certified translation.
