(a) In addition to the identification required by Section 4.42.170, taxicabs may bear the following signs or advertisements:
(1) A metal sign bearing the words "FOR HIRE" and being no longer than six inches by nine inches;
(2) A sign attached to the top of the cab bearing the word "VACANT" and being no longer than two and one-half inches by nine inches;
(3) Advertisements not exceeding twelve square feet in total area subject to the rules and regulations of the chief of police.
(Ord. 3286 § 1 (part), 1981)