Please use this link to access this publication. Abstract Objective To examine the impact of medical and recreational cannabis laws on inpatient visits for asthma and by payer-type. Study Setting and Design Quasi-experimental difference-in-differences regression analysis was conducted while accounting for variations in cannabis laws implementation timing by states. Inpatient visits for asthma in states with a given type of cannabis law were compared with those in states that did not implement the specific law. Four different cannabis laws were examined in the study—initial passage of medical cannabis law, opening of a medical cannabis dispensary, home cultivation of medical cannabis, and recreational cannabis legalization....