Got this from USCIS Homepage
https://www.uscis.gov
On March 18, U.S. Citizenship and Immigration Services temporarily suspended routine in-person services to help slow the spread of coronavirus (COVID-19). USCIS plans to begin reopening our offices on or after June 4, unless the public closures are extended further. USCIS staff are continuing to perform duties that do not involve face-to-face contact with the public. However, USCIS will provide emergency services for limited situations. To schedule an emergency appointment, contact the USCIS Contact Center.
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