What verification is done during the side marker lights inspection?

During the side marker lights inspection, verifying their visibility from both sides of the bus is essential because these lights serve a critical safety function. Side marker lights are designed to make the vehicle more visible to other drivers, particularly when it is parked or in motion at night or in low-light conditions. Ensuring that these lights are visible from both sides ensures that all road users can clearly see the bus, thus reducing the risk of accidents.

While other aspects, such as activation with headlights, color consistency, and alignment with safety standards, are important in a broader context, the primary focus of the side marker lights inspection is on visibility. A well-functioning side marker light helps communicate the bus's presence and intentions to other road users effectively, which is the core purpose of these lights.