If your USCIS request, notice, or decision is dated between March 1 and September 11, 2020, USCIS has extended flexibility to assist applicants and petitioners responding to or filing the following:
Continuations to Request Evidence (N-14)
Notices of Intent to Deny
Notices of Intent to Revoke
Notices of Intent to Rescind and Notices of Intent to Terminate regional investment centers
Filing date requirements for Form N-336, Request for a Hearing on a Decision in Naturalization Proceedings (Under Section 336 of the INA)
Filing date requirements for Form I-290B, Notice of Appeal or Motion
USCIS said it will consider a response to the listed requests and notices received within 60 calendar days after the response due date set in the request or notice before taking any action.
USCIS will provide further updates as the situation develops and will continue to follow CDC guidance. You can visit uscis.gov/coronavirus for USCIS updates.
See USCIS for full detailed information: https://www.uscis.gov/news/alerts/uscis-extends-flexibility-responding-agency-requests-0