Borderline personality disorder (BPD) is a mental health diagnosis that is often misunderstood and highly stigmatized. The diagnosis is characterized by pervasive instability in moods, interpersonal relationships, self-image, and behavior, which can affect interactions with providers and other clients. This training provides an extensive understanding of BPD, including an overview of criteria needed for a BPD diagnosis, how providers can be impacted by and best respond to challenging behaviors that are associated with individuals with BPD, examples of evidence-based interventions specifically designed for BPD symptomatology (with an emphasis on dialectical behavioral therapy (DBT) by Marsha Linehan), and strategies for providers experiencing challenges when working with someone with BPD. Concepts of emotional regulation, mindfulness, and empathic responses will be explored through discussions, case studies, and role plays. Participants can expect to leave the training with an increased understanding of both how and why BPD manifests, as well as methods for addressing challenging behaviors that are associated with BPD utilizing a recovery-oriented and person-centered approach.