National Institutes of Health (NIH)
General Information: https://grants.nih.gov/grants/natural_disasters/corona-virus.htm
NIH Guide Notice: https://grants.nih.gov/grants/guide/notice-files/NOT-OD-20-091.html
FAQs: https://grants.nih.gov/faqs#/covid-19.htm
National Science Foundation (NSF)
NSF has developed a new website for the research community with detailed guidance on the Coronavirus (COVID-19). This includes guidance for awardee organizations, researchers and reviewers of NSF proposals. Please note that this website will be updated as new developments arise.
FAQs: https://www.nsf.gov/pubs/2020/nsf20053/nsf20053.jsp?WT.mc_id=USNSF_80
Impact on Existing Deadlines: https://www.nsf.gov/bfa/dias/policy/covid19/covid19_deadlines.pdf
USDA - National Institute of Food and Agriculture
NIFA Deadline Extensions due to COVID-19: https://nifa.usda.gov/coronavirus
Department of Defense (DOD)
FAQs Regarding DoD Research Impacted by COVID-19: https://basicresearch.defense.gov/COVID-19/Frequently-Asked-Questions/