1. Short title This Act may be cited as the 21st Century Smart Cars Act . 2. Crash avoidance rulemaking (a) In general Subchapter II of chapter 301 of title 49, United States Code, is amended by adding at the end the following: 30129. Crash avoidance rulemaking (a) In general Not later than 2 years after the date of enactment of this Act, the Secretary shall issue final rules prescribing Federal motor vehicle safety standards that— (1) establish minimum performance requirements for the crash avoidance technologies described in subsection (b); and (2) require all new passenger motor vehicles manufactured for sale in the United States, introduced or delivered for introduction in interstate commerce, or imported into the United States to be equipped with the crash avoidance technologies described in subsection (b). (b) Crash avoidance technologies The Secretary shall issue Federal motor vehicle safety standards for each of the following crash avoidance technologies— (1) forward collision warning and automatic emergency braking, including crash imminent braking and dynamic brake support, that detects potential collisions with a vehicle, object, pedestrian, bicyclist, and other vulnerable road user while the vehicle is traveling forward, provides a warning to the driver, and automatically applies the brakes to avoid or mitigate the severity of an impact; (2) rear automatic emergency braking that detects a potential collision with a vehicle, object, pedestrian, bicyclist, and other vulnerable road user while a vehicle is moving in reverse and automatically applies the brakes to avoid or mitigate the severity of an impact; (3) rear cross traffic warning that detects vehicles, objects, pedestrians, bicyclists, and other vulnerable road users approaching from the side and rear of a vehicle as it moves in reverse and alerts the driver; (4) lane departure warning that monitors a vehicle’s position in its lane and alerts the driver as the vehicle approaches or crosses lane markers