San Joaquin Regional Transit District (RTD) is the regional transit provider for San Joaquin County. RTD's mission is to provide a safe, reliable, and efficient transportation system for the region. RTD provides 4.5 million trips annually. RTD's services include Commuter routes to the Bay Area and Sacramento, Stockton Metropolitan Area fixed routes including three Bus Rapid Transit routes, the Hopper deviated fixed-route, and Dial-A-Ride. RTD has three transit stations in Stockton: the Downtown Transit Center (DTC); the Mall Transfer Station (MTS); the Hammer Transfer Station (HTS), and the Union Transfer Station (UTS). RTD's administrative offices are located at the DTC. In 2019, RTD opened the Union Transfer Station, a centralized facility that serves south county residents to connect from east to west.