Final answer:
In addition to selected states, a city may also have idling laws to reduce air pollution, conserve fuel, and improve public health.
Step-by-step explanation:
In addition to selected states, a city may also have idling laws.
Idling laws are regulations that restrict the amount of time a vehicle can idle or run while parked or stopped. These laws are implemented to reduce air pollution, conserve fuel, and improve public health.
Examples of cities with idling laws include New York City, Los Angeles, and Chicago.