The Clinical Outcomes in Routine Evaluation (CORE) system is a comprehensive set of tools used to assess and monitor mental health treatment outcomes. Its main tool, CORE-OM, features 34 items evaluating well-being, symptoms, functioning, and risk, while shorter versions like CORE-10 offer quicker assessments. Using a 5-point scale, CORE measures provide valuable insights into treatment effectiveness, support diagnosis, and track client progress. Known for their standardization and versatility, CORE tools are widely used across clinical settings to ensure high-quality, evidence-based mental health care.