Doug Ducey,governor of Arizona, USA, issued an executive order outlining the conditions under which autonomous vehicles can be tested and operated on public roads. The order, which replaces an earlier version released in 2015, specifically states that fully autonomous cars, which do not have a safety driver behind the wheel, can operate on public roads if the following conditions are met: the automated driving system behind the vehicle is in compliance with applicable federal law and motor vehicle safety standards; if a failure of the automated driving system occurs, the vehicle will achieve a minimal risk condition; the vehicle complies with all applicable traffic and safety laws and regulations of Arizona, and it meets all applicable certificate, title registration, licensing, and insurance requirements. The order came few days after a similar decision was taken in California: the Department of Motor Vehicles announced regulations allowing autonomous vehicles to be tested and used on public road without a driver, under certain conditions.?