CDC does not have a limit or recommend a specific number of attendees for these types of events and instead encourages event organizers to focus on ways to limit people’s contact with each other. Each event organizer will need to determine the appropriate number for their setting in collaboration with local health officials. They should also check state, county, and city rules regarding any current restrictions limiting the number of attendees at events.
In general, the number that is chosen should allow individuals to remain at least 6 feet apart from each other. Rather than focusing on an ideal number, event organizers and administrators should focus on the ability to reduce and limit contact between attendees, staff, and others. In general, the more people you interact with, the more closely you interact with them, and the longer that interaction, the higher your risk of getting and spreading COVID-19. Indoor spaces are more risky than outdoor spaces because indoors, it can be harder to keep people at least 6 feet apart and the ventilation is not as good as it is outdoors.