IIHS is implementing virtual testing for whiplash prevention in rear-impact evaluation. A draft test protocol allowing ATD simulation submission was published in June 2025, with rating guidelines and auditing procedures following in December 2025. The evaluation uses metrics including head contact time, maximum NKM, upper neck tension, T1 x acceleration, and pelvis displacement at both 16 km/h and 24 km/h crash pulses. Small SUV ratings began in January 2026. Whiplash prevention with simulation option will be included in IIHS Top Safety Pick awards by February 2028. Future development includes human body model workflows and validation procedures.