The city of Knoxville, Tenn., is expanding its single-stream curbside recycling program to more than 17,000 residents.

Waste Connections Inc. is the hauler for the program, which provides the service at new additional cost to residents along with city trash pickup. The program also works in conjunction with incentive recycler Recyclebank, and customers get points for pounds of materials recycled that can be used for coupons and discounts at local and national retailers, the city said on its website.

Knoxville will maintain drop-off recycling centers to serve multifamily residents, apartments and small businesses.

 Approximately 13,400 city residents signed up for the new program. About 3,300 additional residents participate in a subscription service with Waste Connections and were automatically included in the new service at no additional cost.