Montana Title 30. Trade and Commerce § 30-22-104. Sale of catalytic converters

(a) provide any consideration to a seller of a catalytic converter until 72 hours after the most recent transaction between the salvage metal dealer and the seller; and

(b) pay more than $30 in cash, stored value device, or electronic fund transfer for any transaction that includes a catalytic converter. Additional consideration contracted for must be paid by check.