As more PDMPs became operational, many federal and state-level policymakers began to explore the value and necessity for interstate data sharing. Combining PDMP data from neighboring states would provide a more complete patient prescription history, thereby enhancing patient care. It was also well known that doctor shopping (multiple provider episodes) and cases of prescription drug diversion often cross state lines and that PDMP data from a single state are limited in their capacity to identify individuals potentially in need of intervention, whether by medical providers or investigative agencies. BJA recognized the importance of states sharing PDMP data and awarded funds to support PDMPs with interstate data sharing efforts and to develop an interstate data sharing solution known as the RxCheck Hub.