1. Short title This Act may be cited as the Safe Roads Act of 2019 . 2. Motor vehicle safety standard (a) Motor vehicle safety standard Not later than 1 year after the date of the enactment of this Act, the Secretary of Transportation shall— (1) prescribe a motor vehicle safety standard under section 30111 of title 49, United States Code, that requires all commercial motor vehicles manufactured after the effective date of the standard to be equipped with an automatic emergency braking system; and (2) include standards that establish the performance requirements for automatic emergency braking systems. (b) Federal motor carrier safety regulation Not later than 1 year after the date of the enactment of this Act, the Secretary of Transportation shall prescribe a regulation under section 31136 of title 49, United States Code, that requires an automatic emergency braking system installed in any commercial motor vehicle in operation on or after the effective date shall be used at any time during which the commercial motor vehicle is in operation. (c) Definitions In this section: (1) Automatic emergency braking system The term automatic emergency braking system means a system on a commercial motor vehicle that, based on a predefined distance and closing rate with respect to an obstacle in the path of the vehicle— (A) alerts the driver of the obstacle; and (B) if necessary to avoid or mitigate a collision with the obstacle, automatically applies the brakes of the vehicle. (2) Commercial motor vehicle The term commercial motor vehicle has the meaning given such term in section 31132 of title 49, United States Code.