Stacy Nonnemacher is the Director of Cross System Strategies for the National Association of State Directors of Developmental Disabilities Services (NASDDDS). She received her PhD from Lehigh University and prior to her current position, served as the Clinical Director for Pennsylvania’s Bureau of Supports for Autism and Special Populations in the Department of Human Services’ Office of Developmental Programs. In this role, Stacy influenced and informed policy and programmatic decisions related to state Medicaid programs focusing on clinical practices and behavioral science to affect change and create best practices in supporting people, their families, and other supporters. Dr. Nonnemacher also conducted applied research and capacity building efforts embracing the application and replication of positive behavior approaches.