Three children with autism who were previously nonresponsive to low-intensity toilet training interventions were toilet trained using a modified Azrin and Foxx (1971) intensive toilet training procedure. Effects were demonstrated using a nonconcurrent multiple baseline design across participants. The training was conducted across home and school settings by parents and school staff. Each child achieved continence, and 2 children eventually initiated the majority of toileting events. Implications for future research and clinical practice and dissemination are discussed.