(A) Every person owning and operating taxicabs who obtains a license from the City may adopt any trade name, design, color scheme or method of painting or lettering such taxicabs that is approved by the Mayor. Such trade name, design, color scheme or method of painting or lettering shall include the following:
(1) A serial body number, assigned by the Mayor to each taxicab, painted on each side and on the rear of the taxicab; and
(2) The name of the owner or the trade name under which he does business, painted on each side of the taxicab.
(B) If the name of the owner or the trade name under which he does business does not include any one of the words "taxicab," "taxi" or "cab," the word "taxicab" shall be painted on each side of the taxicab immediately beneath his name or the trade name.
(C) Whenever any person owning or operating taxicabs does not adopt and use an approved trade name, design, color scheme or method of painting and lettering, it shall be mandatory for such person to paint the following matter on his taxicabs:
(1) A framed panel enclosing on separate lines the name of the owner, the word "taxicab" and the serial body number assigned to the taxicab by the Mayor. Such panel shall be painted on each side of the taxicab and shall cover an area no less than fifteen inches by twenty inches. The form of such panel shall be substantially as follows:
JOHN T. SMITH
TAXICAB
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(2) The serial body number assigned the taxicab by the Mayor painted on the rear exterior of the taxicab.
(D) All mandatory lettering and wording, whether in a particular trade name, design, color scheme, method of painting or lettering or otherwise, shall be at least three inches in height and shall be of such color as, in the opinion of the Mayor, will contrast distinctly with the color of the body of the taxicab. The serial body numbers on sides and rear shall be no less than four inches in height.
No person shall cause or permit any taxicab to appear with a trade name, design, color scheme or method of painting and lettering that is not approved by the Mayor for the taxicab concerned or that is not in accordance with the terms of this section.
(1956 Code Sec. 583.16)