Presentation on human body models (HBMs) for virtual testing, addressing their advantages over anthropomorphic test devices (ATDs) in assessing occupant diversity, body regions, and injury criteria. Discusses challenges including harmonization of anthropometry and posture, biofidelity qualification variability, and injury assessment methodology. Proposes stepwise implementation with minimum harmonization requirements and development of HBM-specific injury risk curves for consistent application across different anthropometries.