| Abstract: Humans at birth are endowed with 2 efficient sphincter reflexes that provide an effective system of discharging bodily waste. When sufficient water or faecal matter accumulates the muscles relax and waste is expelled. The process is a natural part of human functions. However, it is socially expected that children control their bladder before entering kindergarten. Urinary continence in typical children is achieved with little parental effort before the fourth birthday. Typical children in the USA may have less than 4 urination daytime accidents per week just before the third birthday. The definition of this criterion implies that a child is on their way to becoming competent in this critical self-care skill. Underdeveloped continence may lead to inadequate hygiene, stigmatization, and impoverished quality of life. In a clinic setting, I implemented an intensive toilet training protocol based on the principles of Applied Behaviour Analysis for 4 kindergarten learners with a diagnosis of Autism who were wearing diapers 24/7. Parents' attempts to toilet train their children had been unsuccessful. The protocol involved hydration to ensure an increased number of opportunities for urinations and scheduled trips to the toilet. Three students achieved mastery criteria and one student completed their training at home. Parents received training and the skill generalized to home and into community settings |