Starting this Saturday, September 20, Wisconsin’s Division of Motor Vehicles is adding hours at two Milwaukee DMV customer service centers. Milwaukee’s Northwest Service Center, on Mill Road, and Southwest Service Center, on Grange Avenue, will be open Saturdays from 8:30 a.m. to 12 p.m. If the extended hours at the two Milwaukee-based customer service centers prove successful, the DMV may offer Saturday hours at additional Wisconsin DMVs in 2015.