(1) No person shall drive, or move, or cause, or knowingly permit to be driven or moved a motor vehicle or combination of vehicles at any time in such a manner as to exceed the following noise limits for the category of motor vehicle shown below. Noise shall be measured at a distance of at least 25 feet (7.5 meters) from the near side of the nearest lane(s) being monitored and at a height of at least four feet (1.2 meters) above the immediate surrounding surface. All measurements shall be made on a "per occurrence" basis. Any single occurrence of noise in excess of the below-stated limits shall constitute a separate violation of this ordinance. (13.1)

(2) Section 24-22-113 shall apply to the total noise from a vehicle or combination of vehicles and shall not be construed as limiting or precluding the enforcement of any other provisions of these rules and regulations concerning motor vehicle mufflers for noise control. (13.2)

(3) No person shall operate or cause to be operated any motor vehicle unless the exhaust system of the vehicle is: