The Statewide Drug Court Certification Toolkit was created to offer guidance and assistance to states creating a drug court certification process. To achieve optimal outcomes, all drug courts should strive to follow the field’s best practices and maintain fidelity to the established drug court model. Drug courts that stray from this evidence-based approach risk harming those they serve and typically see worse outcomes such as increased recidivism. By implementing a statewide certification process, states can monitor the practices of local courts and ensure that they are maintaining fidelity to the model. This toolkit is specifically for adult drug court programs, but can be applied to other types of treatment court models. It features sample certification documents for users who are looking to create or enhance their statewide certification process.