U.S. residents who wish to use the service may visit Walmart.com/grocery and enter a zip code to see if the service is available to them. If it is, customers then browse the Walmart Grocery's online assortment. It is priced equally to what's in the store, according to walmart.com.
Customers choose their store and select a time slot for pick-up. They have a $30 minimum purchase requirement. Pickup is free, and stores offering the service have designated parking spots for those getting their groceries.
Walmart isn't the only large retailer offering curbside grocery pickup — Kroger grocery stores in some parts of the country have been testing ClickList, a similar service.