MN HF2603

Prohibits possession of used catalytic converters not attached to motor vehicles unless marked with removal date and vehicle identification number, or EPA certified for reuse, effective August 1, 2021.

Restricts non-scrap metal dealers from purchasing used catalytic converters that are not EPA certified for reuse, except when attached to a motor vehicle.

Requires scrap metal dealers to verify seller ownership via vehicle title or registration before purchasing detached converters, with exceptions for unregistered old vehicles with law enforcement affidavits.

Establishes mandatory 7-day holding period before scrap dealers can process or sell purchased converters and 5-day delay before payment, with payment by check to seller's address or bank account.

Creates escalating criminal penalties: misdemeanor for one catalytic converter, gross misdemeanor for two, and felony for three or more; designates illegally possessed converters as contraband subject to forfeiture upon conviction.