When is a school bus stop on a divided or multi-lane highway where students need to cross permitted?

A school bus stop on a divided or multi-lane highway where students need to cross is permitted specifically with an official traffic control signal or officer present. This requirement is in place to ensure the safety of students when crossing busy roadways. Traffic control signals or officers are trained to manage the flow of traffic and can effectively halt vehicles, allowing students to cross safely.

On divided highways, where traffic travels in opposite directions and may be moving at higher speeds and volumes, it's crucial to have specific measures in place that ensure the safety of students. These measures help to mitigate the risks associated with crossing such thoroughfares, where visibility and stopping distances can be more challenging for drivers.

In contrast, other options do not provide the same level of safety assurance and are not appropriate for managing crossings in these situations. For instance, a stop sign alone does not account for the potential traffic flow or control needed on multi-lane roads, and just being in session or daylight does not inherently ensure safety without traffic management in place.