now an independent entity for UMD. Upon the transit system's independence, Charter service was added to its operations in 1975; the following year saw expansion to the curb-to-curb service with Disability Transit Service" for handicap persons; off-campus routes were established in 1976. During the fall of 1978, Shuttle–UM's first facility was built on an off-campus parking lot on Greenhouse Road adjacent to Baltimore Avenue. The new facility, known as UMD Building 013, featured a 12,000 gallon underground diesel tank, numerous maintenance bays, and a bus wash bay. Upon 1979, the project that started as a security service expanded to a transit system consisting of 10 routes with over 20 vehicles. Barri Standish was hired as the first non-student full-time staff member to serve as the General Manager for Shuttle–UM to provide student guidance in transit operations. Through 1985 and 1988, the Greenhouse facility was expanded to allocate growing operations with administrative offices and maintenance bays. Shuttle–UM's expansion in 1985 also composed of ridership growing to 1.1 million passengers annually and employing 125 student employees that took the positions of "drivers, dispatchers, maintenance assistance, trainers, and managers." By 1986, Shuttle–UM became a member of the American Public Transportation Association and the Transit Association of Maryland. Within 1999 and 2001, the facility's maintenance bays were expanded to accommodate the growing fleet caused by the growing ridership; the administrative offices also underwent a further expansion in 2001 to accommodate growing employment. 2010s– For several years, the annual ridership remained above 2 million; however, during the 2011–12 academic year, DOTS started an initiative that would reward their three millionth rider with free books for a school year, which ultimately commenced in their first year with 3 million riders. In 2012, the construction of a brand new facility was completed on Paint Branch Drive within campus adjacent to the XFINITY Center. This new facility fit into DOTS' mission and goal to be more sustainable. The facility included geo-thermal heating and cooling systems, a green roof, and an in-ground filtration system to separate run-off diesel and storm water in the fueling area. The new facility was able to house all administration that was expanded within the years at the Greenhouse facility and featured an above-ground diesel tank that stored 2,000 gallons more. Shuttle–UM saw its first expansion with the introduction of its UM Shuttle service for the University of Maryland, Baltimore campus which strictly serves the