As of 11:59 p.m. on April 17, essential workers in San Francisco — including those who work at restaurants open for delivery and takeout — are required to wear face coverings, as are citizens out to pick up meals, shop for groceries, or do other essential tasks.

The new policy was announced by San Francisco Mayor London Breed and city Director of Health Dr. Grant Colfax on Friday afternoon, and was enacted, they say, to help “prepare for future lifting