The Michigan Department of Health and Humans Services does not require that masks be worn, indoors or out. However, the U.S. Centers for Disease Control and Prevention recommends that both vaccinated and non-vaccinated individuals wear masks indoors due to the COVID transmission rate in the county. You and your hosting venue can determine any requirements for your event. Local governments, workplaces and other businesses may still require everyone to wear masks if they deem it safer for visitors, customers and employees.  View More Details