ICE Guidance on COVID-19: https://www.ice.gov/covid19
SEVP January 2020: Broadcast Message: 2019 Novel Coronavirus and F and M nonimmigrants: https://www.ice.gov/doclib/sevis/pdf/bcm2001-05.pdf
SEVP March 2020: Broadcast Message: Coronavirus Disease 2019 (COVID-19) and Potential Procedural Adaptations for F and M nonimmigrant students: https://www.ice.gov/doclib/sevis/pdf/bcm2003-01.pdf
SEVP Frequently Asked Questions about COVID:
https://www.ice.gov/sites/default/files/documents/Document/2020/COVID-19FAQ.pdf