The Families First Coronavirus Response Act (FFCRA), which expanded emergency FMLA and paid sick leave includes a notice requirement for employers. Below are links that came out with the required employer notice as well as a FAQ for posting the notice.
Note posting may be fulfilled by emailing to remote workers.
Notice: https://www.dol.gov/sites/dolgov/files/WHD/posters/FFCRA_Poster_WH1422_Non-Federal.pdf
FAQ: https://www.dol.gov/agencies/whd/pandemic/ffcra-poster-questions