Several thoracic and head protection side impact air bag systems (SAB) are emerging in the U.S. market and are projected to become prevalent in the fleet. These systems appear to offer superior protection in side crashes. However, concerns have been raised as to their potential for causing injury to out-of-position (OOP) occupants. This paper describes the National Highway Traffic Safety Administration (NHTSA) program for evaluation of the SAB systems for OOP occupants and provides a status report on the current research. The industry’s Side Airbag Out-of-Position Injury Technical Working Group (TWG) recommended procedures for 3 year old and 6 year old occupants are evaluated. Additional test procedures are described to augment the TWG procedures for these occupants and 12 month old infants.