The U.S. Department of Transportation (DOT) released an update to the agency's policy regarding autonomous vehicles on January 11, 2021. The policy, the Automated Vehicles Comprehensive Plan (The Plan), builds on three previous policy statements released during the Trump administration: "Automated Driving Systems 2.0: A Vision for Safety" (ADS 2.0) released in September 2017; "Preparing for the Future of Transportation: Automated Vehicles 3.0" (AV 3.0) released in October 2018; and "Ensuring American Leadership in Automated Technologies: Automated Vehicles 4.0" (AV 4.0) released in February 2020. The Plan provides an outline of the agency's ongoing and forthcoming plans for integrating automated driving systems (ADS) and autonomous technology into the wider transportation system.