The casinos began reopening in May with new cleaning, social distancing and face covering policies, but some of their employees have raised concerns. Already, San Diego fails to stay under the threshold for outbreaks set by public health officials. That means local outbreaks potentially are being left out of a metric the county considers in reopening decisions. Because they are on sovereign land, they aren’t subject to local health regulations that ordered other businesses remain closed. The nine tribal casinos in San Diego County began reopening in May with limited operations, about two months after shutting down due to COVID-19.