This pilot study is designed to investigate the feasibility of comparing a standard behavioral intervention and an innovative intervention that incorporates the use of a wireless moisture alarm in training children with autism how to independently use the toilet for urination. We hypothesize that the study protocol will be feasible, as measured through review of achieved recruitment targets, successful randomization, and >80% retention of subjects with com- plete data collection. Our second hypothesis is that therapists will deliver experimental and standard behavioral treatment intervention with ≥80% fidelity and parents in both intervention groups will adhere to the intervention with ≥80% fidelity. A secondary aim of this study is to examine trends in outcome data by conducting a small RCT (N = 30) of wireless moisture alarm and standard behavioral toilet training, with the hypothesis that the moisture alarm intervention will result in fewer toileting accidents, a higher rate of toileting success and greater parental satisfaction.