Which of the following vehicles is exempt from the motor vehicle safety belt usage act?

Authorized emergency vehicles are exempt from the motor vehicle safety belt usage act because they often operate under extreme conditions where quick response times are critical. Emergency responders may need to move rapidly in and out of their vehicles and respond to situations that require immediate attention, which is why they are granted this exemption. This allows them to perform their duties effectively without the constraints of safety belt use in situations where it may impede their ability to respond quickly.

In contrast, personal vehicles, commercial trucks, and rideshare vehicles are typically subject to the safety belt laws to ensure the safety of all passengers and drivers. These laws are in place to reduce injury rates and promote responsible driving practices.