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During driving, automobile and light truck occupants interface with almost all the components in the passenger compartment. These components are expected to provide not only ease of access to controls and comfort to the occupants, but also the necessary protection to decrease the likelihood of injuries during accidents. The passing of the revised Federal Motor Vehicle Safety Standard (FMVSS) No 201 is aimed at improving the overall safety of vehicle occupants during impact situations Amendments are specifically focused at improving the protection provided by the upper compartment components, i e, header, rail, pillar and roof trim panels, to the occupants' heads impacting at high velocities. The present paper reviews the requirements established by the revised federal legislation and the design and material options to meet the requirements, and describes a systematic approach for designing and engineering trim panels for head impact protection