This undated image provided by Google, shows an early version of Google's prototype self-driving car. For the first time, California's Department of Motor Vehicles knows how many self-driving cars are traveling on the state's public roads. The agency is issuing permits, Tuesday, Sept. 16, 2014 that let three companies test 29 vehicles on highways and in neighborhoods. (AP Photo/Google, File)

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Self-driving cars now need a permit in California

• By ncs-import
• September 16, 2014