Current through Register Vol. 54, No. 50, December 14, 2024
Section 157.21 - Inspection and examination of motor vehicles(a)Police authorization. Any police officer shall be authorized to inspect, examine and test a motor vehicle in accordance with the procedures specified in this chapter.(b)Duty to submit. A driver or owner shall, at any time, submit a motor vehicle for inspection, examination, and testing for the purpose of ascertaining whether the motor vehicle and equipment installed on it conforms with the sound levels specified in Table 1.(c)Training. Police officers selected to measure sound level of vehicles operated on highways shall have received training in the techniques of sound measurement and the operation of sound measuring instruments.(d)Method. When making direct readings of the meter, the police officer shall be positioned in relation to the microphone in accordance with the instructions for the instrument. When the instrument manual is vague or does not include adequate information, a specific recommendation shall be obtained from the manufacturer.