What must motorcycles have functioning at all times?

Motorcycles are required to have both the headlight and taillight functioning at all times, regardless of the time of day. This requirement is crucial for ensuring visibility and safety on the road. The headlight enhances the visibility of the motorcycle to other drivers, helping to prevent accidents, particularly during low-light conditions such as twilight or when weather conditions reduce visibility. Similarly, the taillight signifies the presence of the motorcycle to vehicles following behind, making it clear to them when the motorcycle is present and when it may be stopping.

While some options suggest that only one light or specific lights are needed at certain times, this does not align with safety regulations intended to protect motorcyclists. By maintaining both the headlight and taillight in working order at all times, motorcyclists can significantly increase their safety and the safety of others on the road.