What is the prima facie speed limit for school buses that have passed a commercial motor vehicle inspection and are on a numbered highway including farm-to-market roads?

The prima facie speed limit for school buses that have successfully passed a commercial motor vehicle inspection and are operating on a numbered highway, including farm-to-market roads, is indeed 60 mph.

This limit is set in recognition of the bus's compliance with safety inspections, which assures that the vehicle is in good working condition for travel at higher speeds. It is important to consider that while school buses might typically have lower speed limits in certain contexts—such as in school zones or residential areas—the allowance for 60 mph on highways reflects the need for safe transport while also accommodating the operational needs of public transit systems.

The distinction in speed limits for different scenarios is a critical aspect of traffic regulations, focusing on both safety and efficiency. Therefore, understanding the context of vehicle types, their inspections, and the nature of the roads they traverse helps ensure adherence to the law and promotes safety on the roads.