An anonymous reader writes "The Department of Transportation issued a new rule (PDF) on Monday requiring car manufacturers to include rearview cameras in all cars manufactured after May 1, 2018. The rule applies to all cars weighing less than 10,000 pounds, including buses and trucks, but does not include motorcycles and trailers. '[The cameras] must give drivers a field of vision measuring at least 10 by 20 feet directly behind the vehicle. The system must also meet other requirements including dashboard image size, lighting conditions and display time.' An estimated 13 to 15 deaths and 1,125 injuries may be prevented with the implementation of this new requirement."