(a) A permit issued under this subchapter must:
(1) contain the name of the applicant;
(2) be dated and signed by the director of the department or a designated agent;
(3) state the make and model of the portable building unit or units to be transported over the highways;
(4) state the make and model of the towing vehicle;
(5) state the combined length and width of the portable building unit or units and towing vehicle; and
(6) state each highway over which the portable building unit or units are to be moved.
(b) A permit is valid if it is substantially in the form provided by this section.