a. No owner or operator shall operate or cause or allow to be operated a taxicab or limousine on the City streets of the City of Phoenix using a meter to compute fares unless said meter is accurate.

b. No owner or operator operating a taxicab or limousine on the City streets of the City of Phoenix shall charge more than the amount shown on the meter, if used and displayed on and in the taxicab, unless there is a specific agreement to the contrary, in which case no more than said agreed fare shall be charged. (Ord. No. G-2366, § 1; Ord. No. G-2522, § 2)