1. Short title This Act may be cited as the Preventing Auto Recycling Theft Act or the PART Act . 2. Requirements for new motor vehicle regulations relating to catalytic converters (a) In general Not later than 180 days after the date of enactment of this Act, the Administrator of the National Highway Traffic Safety Administration (referred to in this section as the Administrator ) shall— (1) issue a notice of proposed rulemaking to revise the motor vehicle theft prevention standard contained in section 541.5 of title 49, Code of Federal Regulations (or a successor regulation), to include catalytic converters among the parts specified in subsection (a) of that section; (2) issue a notice of proposed rulemaking to revise part 543 of title 49, Code of Federal Regulations (or successor regulations), to require that, notwithstanding the granting of a petition under that part, all catalytic converters be marked in accordance with section 541.5 of that title (as revised pursuant to paragraph (1))