On December 30, 2021, USCIS extended the flexibilities it announced on March 30, 2022, to allow applicants, petitioners, and requestors responding to certain agency requests through March 26, 2022. This means that USCIS will consider a response received within 60 calendar days after the due date set forth in the requests or notices before taking any action, as long as the request or notice was issued anytime between March 1, 2020, and March 26, 2022. This applies to:
Requests For Evidence;
Continuation to Request Evidence (N-14);
Notice of Intent to Deny;
Notice of Intent to Revoke;
Notice of Intent to Rescind;
Notice of Intent to Terminate Regional centers; and
Motion to Reopen an N-400 Pursuant to 8 CFR 333.5, Receipt of Derogatory Information After Grant.
USCIS will also consider a Form I-290B, Notice of Appeal or Motion, or a Form N-336, Request for a Hearing on a Decision in Naturalization Proceedings, if the form was filed up to 90 calendar days from the issuance of a decision the service made; and that decision was made between November 1, 2021, and March 26, 2022. Please note that this is longer than the previously announced flexibility of 60 calendar days in these circumstances.
Link: https://www.uscis.gov/about-us/uscis-response-to-covid-19 (“Deadlines for Certain Requests, Notices, and Appeals”)