NASHVILLE— The Tennessee Department of Safety and Homeland Security today announced the implementation of new business hours for its 49 Driver Service Centers across the state. Effective Monday, August 15, all Driver Service Centers will operate during the hours of 8:30 a.m. to 5 p.m. Monday through Friday. The change comes as part of the department’s top-to-bottom review, which aims to provide efficient, customer-friendly service to every Tennessean.