This report reviews current1 quantitative data on human tolerance levels without recommending specific limits. Data developed on humans (including cadavers) are presented where available, however, in many cases animal data are provided where no suitable human results have been reported. This report confines itself, as much as possible, to information of direct use to the automotive designer and tester. Data of only academic interest are largely omitted, therefore, J885 should not be considered as a complete summary of all available biomechanical data.