Residents of the city of Los Angeles will have to wear face coverings if they venture out to grocery stores, pharmacies or other essential businesses allowed to serve the public amid a statewide stay-at-home order.

“Every Angeleno will share this responsibility with employers: To keep workers and everybody else safe, which is why we are requiring customers to wear face coverings to enter those businesses,” Mayor Eric Garcetti said Tuesday in issuing the facial covering mandate, which takes effect Friday.

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“If you’re shopping for groceries, picking up a prescription or visiting any other essential business, and if you’re not covering your face, by Friday morning, an essential business can refuse you service,” the mayor said.

He said workers at those businesses would also have to wear face coverings. The order is designed to prevent the person-to-person spread of coronavirus.

“These critical places where we do come into contact with each other – those workers also must wear a facial covering,” Garcetti said.

Los Angeles County health officials said Tuesday there have been 6,910 coronavirus cases and 169 deaths since the pandemic began.

Garcetti said he’s spoken to Los Angeles County supervisors who represent the county’s 10 million residents and the leaders of nearby cities about making the mask mandate region-wide.

“Cover up, save a life, it’s that simple,” he said.