Which of the following vehicles are exempt from width, length, height, or weight rules?

Public utility vehicles for emergency repairs are exempt from width, length, height, or weight rules because they are often required to respond quickly to emergencies, such as power outages or water main breaks. The nature of their work necessitates flexibility in adhering to standard size and weight regulations, allowing them to transport specialized equipment and reach areas quickly.

This exemption is crucial for the safety and efficiency of emergency services, as delays could result in further infrastructural damage or public safety concerns. While private passenger vehicles, construction vehicles, and delivery trucks have specific regulations that they must adhere to concerning size and weight, public utility vehicles' primary role in emergency response justifies their exemption from these rules under certain conditions.