Emerging technologies present many potential challenges to state departments of transportation (DOTs) and other agencies that own and manage the existing infrastructure. Significant uncertainty exists about which changes are most likely to occur and where the largest impacts could be, hampering an effective national alignment in policy and approach. NCHRP Research Report 1090: Risks Related to Emerging and Disruptive Transportation Technologies: A Guide, from TRB's National Cooperative Highway Research Program, presents a register of risks to state and local transportation agencies and their constituents posed by four emerging technologies: electric vehicles (EVs), connected autonomous vehicles (CAVs), mobility on demand/mobility as a service (MOD/MaaS), and advanced air mobility (AAM). Supplemental to the report are a PowerPoint presentation describing the research and an implementation plan.