ALEXANDRIA, Va.—Walmart has expanded its self-driving delivery pilot program in Arizona with Cruise. The program is currently in Scottsdale and will now include Chandler, reports Tech Crunch.

Cruise said that it will expand to eight Walmart stores in the Phoenix and Scottsdale areas by the end of the year before bringing self-driving delivery to the rest of the country, according to Carter Stern, Cruise’s senior government affairs manager.

Cruise orders are delivered between 8 a.m. and 8 p.m., and customers must place their order online for the service. If their order qualifies, they’ll receive a message from Cruise asking if they would like their order delivered by a self-driving vehicle.

Customers can track their order and will receive notifications when the vehicle is two minutes away and when it has arrived. They meet the car at the curb, using their phone to unlock the rear passenger door, grab the order and then close the door.

Cruise is owned by General Motors, but Walmart invested in the company last year to help in the development of its autonomous driving technology.

In December, 7-Eleven announced it will launch autonomous delivery in Mountain View, California, via robotics company Nuro—the first autonomous commercial delivery in the state of California.

7-Eleven customers in the store’s service area order through the 7NOW delivery app and select autonomous delivery. The customer receives their order in 30 minutes and can grab their purchase from the back of the vehicle. Autonomous vehicle deliveries are available daily from 8 a.m. to 9 p.m. PT at no additional charge.