When is it illegal to drive in Guam?

Driving under the influence of drugs or alcohol is illegal because it impairs your ability to operate a vehicle safely. When an individual is under the influence, their reaction times, judgment, and coordination are significantly diminished, which increases the risk of accidents and endangers not only the driver but also passengers, pedestrians, and other road users. Laws are in place to discourage this unsafe behavior and ensure a safer driving environment for everyone.

The other scenarios, while they may involve potential hazards or conditions that require caution, do not inherently make driving illegal in the same way as being under the influence does. For example, severe weather conditions might warrant careful driving or even a decision to refrain from driving, but does not by itself constitute an illegal act. Similarly, driving at night is legal as long as the driver adheres to traffic laws and visibility conditions. Lastly, the age of a vehicle, while it may require certain maintenance or inspections, does not render it illegal to drive unless specific safety regulations are not met.