Bay Area Rapid Transit District (BART) worked with Google during the early deployment of both the General Transit Feed Specification (GTFS) and General Transit Feed Specification Realtime (GTFS-RT). In both cases BART deployed its implementations on the official release date, along with a select few other transit agencies around the globe. These feeds provide a static schedule feed (GTFS) and a real-time feed of deviations from schedule and alerts (GTFS-RT).