This manual is intended to provide California school bus drivers with the required course of instruction in first aid practices. It deals with the basic principles of handling serious medical emergencies, but major emphasis is on the variety of minor injuries or illnesses that may occur while students are riding on school buses. Chapter 1 covers determining the course and plan of action in each medical emergency. The next 15 chapters focus on first aid care for these types of emergencies: emergencies of the heart and circulatory system; wounds, bleeding, and bruises; breathing and airway maintenance; skeletal injuries and disorders; spinal injuries; injuries to the head and special organs; transportation of the sick and injured; unconsciousness, fainting, and convulsions; shock; poisoning and drug overdose; less serious medical problems; thermal, chemical and electrical injuries; foreign bodies; bites and stings; and mental health emergencies. Chapter 17 summarizes 10 important points from the manual. (YLB)