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TRB's National Cooperative Highway Research Program (NCHRP) Web-Only Document 253: Implications of Connected and Automated Driving Systems, Vol. 1: Legal Landscape explores federal, state, and international legal activities and practices regarding Connected and Automated Vehicles and Highly Automated Vehicles (C/AV/HAVs):

  • Section 1 reviews United States federal activities within the sphere of regulating C/AV/HAVs.
  • Section 2 reviews practices in each of the 50 states and local activities that have amended motor vehicle codes. For a review of legislation that has been introduced across all 50 states (some of which has not passed out of state legislatures as law), refer to Appendix C, which is a sortable Excel spreadsheet delineating activities at the federal and state level.
  • Section 3 highlights activities being undertaken by transportation agencies within this field, specifically highlighting the American Association of Motor Vehicle Administrators (AAMVA’s) activities.
  • Section 4 provides brief summaries of law journal articles that address subject matter focus areas for policy-makers and legislators to consider as C/AV/HAV market penetrations grow. It includes a review of privacy laws.
  • Section 5 provides a review of international activities being undertaken in this area. The team reviewed related activities taking place among our North American Free Trade Agreement (NAFTA) trade partners, Canada and Mexico, as well as in European countries and the European Union, Australia, and Japan.
  • Section 6 offers conclusions based on information presented in sections 1 through 5.

View all volumes of NCHRP Web-Only Document 253:

  • Vol. 1: Legal Landscape
  • Vol. 2: State Legal and Regulatory Audit
  • Vol. 3: Legal Modification Prioritization and Harmonization Analysis
  • Vol. 4: Autonomous Vehicle Action Plan
  • Vol. 5: Developing the Autonomous Vehicle Action Plan
  • Vol. 6: Implementation Plan

Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2018. Implications of Connected and Automated Driving Systems, Vol. 1: Legal Landscape. Washington, DC: The National Academies Press.

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Publication Info

131 pages |  8.5 x 11 |  DOI:

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