(1) The term "transporter" applies only to those engaged in the business of delivering vehicles, not owned by said transporter, by driveaway or towaway methods and does not apply to motor freight carriers licensed under chapter 81.80 RCW to haul vehicles on trailers or semitrailers.

(2) The special license plates issued authorize driving or towing unlicensed vehicles in lieu of a temporary permit or license plates required under chapter 46.16 RCW.

(3) The special license plates issued shall be displayed as follows:

(a) On driveaway vehicles a front and rear plate of a set with the same number and letter suffix.

(b) On tractor and semitrailer or trailer combination, one of a set on the front of the towing unit and the other half of a set with the same suffix letter on the rear of the semitrailer or trailer being delivered.

(c) When using a tow bar saddlemount, fullmount or lawful combination thereof: One of a set of plates on the front of the towing unit and one of a set of plates on the rear of each vehicle following.