Dr. Angélica Meinhofer is an Instructor in the Department of Healthcare Policy & Research at Weill Cornell Medical College. She completed her doctorate in Economics at Brown University and previously worked as a Research Economist at RTI International’s Behavioral Health Services, Policy and Economics Research Program where she designed and conducted evaluations of interventions for opioid use disorder. Her pilot grant will examine the impact of punitive and supportive pre-natal drug use policies on maternal behaviors, pregnancy outcomes, and costs using national data sets. Using CHERISH funds she will purchase the Healthcare Cost and Utilization Project (HCUP) data set, which includes the largest collection of longitudinal hospital care data in the United States, with all-payer, encounter-level information. This study will address critical knowledge gaps regarding the impact of state policies for reducing substance use during pregnancy, and will guide policy approaches to improve maternal and infant health.