The current guidance is to monitor the  Centers for Disease Control and Prevention (CDC) website  daily to see if there are any updates or recommendations. This website includes specific guidance for schools that do not have COVID-19 identified in their community and for those that do. (The CDC also has  posters and print materials on the coronavirus in multiple languages ).

We also recommend you monitor:

U.S. Department of Education, which published information for schools and school personnel at  https://www.ed.gov/coronavirus

Nevada Department of Education:  http://www.doe.nv.gov/