America's largest retailer, Walmart, and one of the biggest supermarket chains in Colorado, King Soopers, will start requiring all customers to wear masks next week.
The Walmart mandate includes Sam's Club stores, and starts Monday (July 20th).
Kroger, which owns Colorado's King Soopers grocery chain, will begin requiring all customers to wear masks on Wednesday (July 22nd).
Starbucks and Best Buy are also on a growing list of corporations that are now requiring facial coverings to stop the spread of coronavirus.