The U.S. National Highway Traffic Safety Administration (NHTSA) has issued a final  rule that will require rearview cameras on all new cars, trucks and buses weighing  less than 10,000 pounds. 

The rule aims to reduce the risk of backover crashes involving vulnerable populations  (children, the elderly and persons with disabilities) and satisfy the mandate of the  Cameron Gulbransen Kids Transportation Safety Act of 2007 directing the agency to  improve rear-visibility technology in new vehicles. 

With an anticipated two-year phase-in scheduled to begin in May 2016, the rule will  require that the camera’s field of view cover a 10-footby-20-foot zone directly behind the vehicle. The  system must also meet other requirements, including  image size, linger time, response time, durability, and  deactivation. NHTSA estimates that approximately 70  lives will be saved each year once all new vehicles comply with the rule. See Federal  Register, April 7, 2014.