The US Department of Transportation and the National Highway Traffic and Safety Administration have released a newset of guidelines for automated driving systems (ADS), replacing those approved in 2016. Under the title 'A Vision for safety 2.0', the guidelines are intended to provide 'a nonregulatory approach to automated vehicle technology safety'. One section on 'Voluntary guidance for automated driving systems' outlines 12 priority safety design elements for consideration by the automotive industry, on issues such as cybersecurity, human machine interface, crashworthiness, consumer education and training, and post-crash ADS behaviour. The guidelines also clarify federal and state roles in the regulation of ADSs, and provide best practices and recommendations for states to consider when developing legislation and regulations for ADSs.