In response to the coronavirus disease 2019 (COVID-19) public health emergency, CMS added requirements to an existing regulation that requires nursing homes to report to State and local health departments communicable diseases, health care-associated infections, and potential outbreaks. Under one requirement, these facilities must now report COVID-19 data (such as information on suspected and confirmed infections, and deaths among residents and staff) to the Centers for Disease Control and Prevention through its National Healthcare Safety Network system. The data must be reported in a standardized format at least weekly. We will assess nursing homes' reporting of CMS-required information related to the COVID-19 public health emergency. Specifically, we will determine whether the data reported by nursing homes were complete, accurate, and reliable.