The increase in the prevalence of autism spectrum disorders in the last decade has contributed to growth in the field of applied behavior analysis (ABA). This growth has been spurred by consumer demand for access to this evidence-based treatment for those with an autism spectrum disorder. Presently, there are at least 34 states that have laws or regulations in place that mandate insurance coverage for autism spectrum disorders. There are also 14 states that have passed licensure or a similar regulatory mechanism for identifying competent providers of ABA. The following paper documents the process of insuring consumer advocacy and protection in the states of Missouri and Wisconsin through the passage of legislation that established licensure for practitioners of ABA. The evolution of this process in both of these states will be detailed as well as a number of lessons learned that should prove to be helpful as additional states move toward licensure for practitioners of ABA. Copyright © 2014 John Wiley & Sons, Ltd.