What is the minimum aggregate rating required for fire extinguishers on a school bus?

The minimum aggregate rating required for fire extinguishers on a school bus is 8 BC. This is specified to ensure that the fire extinguishing capabilities meet safety standards for transporting students, providing an essential safety measure in case of a fire emergency.

The BC rating of a fire extinguisher indicates its effectiveness against specific types of fires—specifically, those involving flammable liquids and electrical equipment. By requiring an aggregate rating of 8 BC, regulations ensure a sufficient level of preparedness to handle potential fire incidents on a school bus, where quick responses are critical for the safety of children.

In the context of school bus safety, having fire extinguishers with an adequate rating helps to mitigate risks and protects both passengers and the vehicle. This rating standard is set because of the unique environment and the potential hazards associated with transporting young passengers.