What type of license must a school bus driver possess?

A school bus driver is required to possess either a Class A or Class B license. This requirement is in place because these classifications are designed for drivers of larger vehicles, which include buses. A Class B license specifically allows the operation of a single vehicle with a gross vehicle weight rating (GVWR) of more than 26,000 pounds, or a bus that can carry 24 or more passengers, including the driver. A Class A license permits the operation of a combination of vehicles with a combined weight of over 26,000 pounds.

Having the appropriate license ensures that bus drivers have the necessary skills and knowledge to handle the larger size and weight of a school bus, ensuring the safety of the students they transport. The additional training and requirements associated with these licenses help ensure that the drivers are well-prepared for the challenges of driving a school bus, including managing the safety and well-being of passengers, which is critical when transporting children.

While other options refer to different types of licenses or endorsements, they do not meet the specific criteria required for operating a school bus in California. Thus, the correct answer encompasses the specific licensing requirements necessary for school bus drivers.