What is the standard procedure for evacuating through the rear emergency exit?

Rear emergency exit evacuation: open the rear door (or roof hatch in some buses); have students sit down at the door, slide forward to the door opening, and step off; the driver or a designated student helper assists each student. Stepping down from the rear of a bus is awkward; the seated-and-slide method prevents falls. Older students often help younger students step down or jump down safely. The driver typically goes through the bus to verify no student is left behind, then exits last. Some buses also have side exits, roof hatches, and pushout windows that may be used depending on the situation.