(a) A permit holder shall display on each permitted tow truck:
(1) the permit holder's name;
(2) the permit holder's telephone number;
(3) the city and state where the permit holder is located; and
(4) the permit number for the tow truck.
(b) The information required to be displayed must be:
(1) printed in letters and numbers that are at least two inches high and in a color that contrasts with the color of the background surface; and
(2) permanently affixed in conspicuous places on both sides of the tow truck.