; (2) requiring dashboard access to AM broadcast stations in a manner that is conspicuous to a driver; and (3) allowing a manufacturer to comply with that rule by installing devices that can receive signals and play content transmitted by digital audio AM broadcast stations as standard equipment in motor vehicles manufactured in the United States, imported into the United States, or shipped in interstate commerce after the effective date of the rule. (c) Interim requirement For motor vehicles manufactured in the United States, imported into the United States, or shipped in interstate commerce between the period of time beginning on the date of enactment of this Act and ending on the effective date of the rule issued under subsection (b) that do not include devices that can receive signals and play content transmitted by AM broadcast stations, the manufacturer of the motor vehicles shall provide clear and conspicuous labeling to inform purchasers of those motor vehicles that the motor vehicles do not include devices that can receive signals and play content transmitted by AM broadcast stations. (d) Enforcement (1) Civil penalty Any person failing to comply with the rule issued under subsection (b) shall be liable to the United States Government for a civil penalty in accordance with section 30165(a)(1) of title 49, United States Code. (2) Civil action The Attorney General may bring a civil action in an appropriate district court of the United States to enjoin a violation of the rule issued under subsection (b) in accordance with section 30163 of title 49, United States Code. (e) Study (1) Study required (A) In general The Comptroller General shall study and assess whether an alternative communication system for delivering emergency alerts and critical public safety information distributed by the Integrated Public Alert and Warning System to drivers and passengers of motor vehicles exists that— (i) is as reliable and resilient as AM broadcast stations