1. When the owner of a commercial motor vehicle registered in excess of fifty-four thousand pounds returns the license plates to the director of revenue as provided in section 301.120, but not for a license suspension or revocation, the owner shall receive a refund or credit of any pro rata amount to be determined by the calendar quarters remaining before expiration of the license plates. Such refund or credit shall be granted based upon the date the license plates are surrendered to the director of revenue. Any credit or refund may be applied toward any subsequent application for a Missouri registration only if a commercial motor vehicle. Any refunded portion of a registration fee which was distributed according to the provisions of Article IV, Section 30(b) of the Constitution of Missouri shall be refunded proportionately from state, city and county funds.

2. When the owner of a commercial motor vehicle registered in excess of fifty-four thousand pounds returns the license plate or plates to the appropriate official in the state where the license plate for the commercial motor vehicle was issued, a refund or credit shall be issued by the director of revenue as provided in subsection 1 of this section. If the refund is to come from moneys previously transferred to another state by this state as a result of a reciprocity agreement, such refund by the director of revenue may only be made upon return of such moneys from that state to the director. If such moneys are not returned by that state, such refund will not be made.