A new store policy at some Super One Foods and Super One Liquor locations is requiring customers to wear face coverings while in the stores.

After the city of Duluth unanimously passed an ordinance Monday night requiring people over age 10 to wear masks while in public buildings, those shopping at some Super One locations outside the city will also be required to wear something that covers their nose and mouth.

The requirement applies to all stores in Duluth and Pike Lake, Superior, Cloquet and Two Harbors locations, as well as all stores in Michigan. The rule went into effect Tuesday.

Single-use masks will be available at the service counter for $1, according to a Super One Facebook post announcing the requirement.

The rule applies to all children old enough to walk, unless those children are being carried or seated in a cart.

Exemptions to the requirement include customers with a medical or mental health condition or a disability that prevents wearing a face covering, the statement said. Those who are hearing impaired and rely on seeing the mouth for communication are also exempt.

Super One, owned by Miner's Inc., has over 30 stores, including locations on the Iron Range; north-central Minnesota; Roseau and International Falls, Minnesota; and northern Wisconsin.