Electric Cars in U.S. Must Make Noise Pedestrians Can Hear

Electric Cars in U.S. Must Make Noise Pedestrians Can Hear

Kiyoshi Ota/Bloomberg

A Nissan Leaf electric vehicle (EV) produced by Nissan Motor Co. in Japan, Tokyo, on Nov. 20, 2012. Electric cars, which have soundless engines, will be required to make noise for pedestrians to hear.