Mont. Code Ann. § 61-3-446
61-3-446 Retention of special license plates
61-3-446 . Retention of special license plates. If during a registration year the holder of special license plates issued under 61-3-332 (8) or generic specialty license plates issued as provided in 61-3-472 through 61-3-481 disposes of the motor vehicle to which the plates are affixed, the holder may retain the plates and transfer them to another vehicle under 61-3-335 .