State regulation states that school buses shall not transport any items, material, or equipment that might endanger occupants of the bus. These include:

• glass bottles or jars
• chemicals
• flammable liquids
• objects with sharp or dangerous edges
• oversize objects that cannot be secured under the bench seat or held in the student's lap
• animals other than approved service animals

In addition, any item that could break or produce injury if tossed about inside of the bus shall be properly stored or secured. These include:

• athletic equipment
• musical instruments
• backpacks
• books
• science fair projects