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Top nine brick-and-mortar retailers now require coronavirus masks in U.S. stores

In the heat of D.C. summer, firefighters from Engine Co. 4 risk exposure as they test hundreds of residents for the coronavirus. (Video: The Washington Post)

The nine largest brick-and-mortar retail companies, which the National Retail Federation ranks based on global sales, have adopted new policies to require customers to wear masks inside U.S. stores.

Costco began enforcing masks on May 4, but two months passed before other top retailers followed suit. Walmart, Inc. seemed to have triggered a corporate landslide this week with its announcement on Wednesday that masks would be required in its namesake stores and Sam’s Club locations.

Seven more of the largest brick-and-mortar retailers in the U.S. announced similar policies within two days: Kroger, CVS Health, Walgreens, Target, Albertsons Companies (which owns Safeway, Tom Thumb, and Acme, among other brands). Lowe’s and Home Depot both announced mask requirements Friday.