CSAPA Oppelia Trait d'Union in Boulogne-Billancourt, France provides comprehensive outpatient treatment for individuals struggling with substance use and co-occurring mental health conditions. As part of the larger Oppelia nonprofit organization, this center combines thorough psychological and substance use assessments with personalized psychotherapy, medication management, and harm reduction strategies. The program offers holistic care through effective case management and can coordinate housing services through Oppelia's network of resources. Conveniently located near the Pont de Billancourt bridge and accessible via bus lines 289 and 123, the center serves as an important community resource. This facility operates within Oppelia's broader mission of prevention, risk reduction, and social inclusion, bringing specialized care to children, adolescents, adults, and families affected by substance use and high-risk behaviors.