IEC TR 62343-6-5:2014 which is a technical report, describes an investigation into operating mechanical shock and vibration for dynamic modules. It also presents the results of a survey on the evaluation and mechanical simulation of mechanical shock and vibration testing. Also included is a study of standardization for operating mechanical shock and vibration test methods. This second edition cancels and replaces the first edition published in 2011. It constitutes technical revision. The main change with respect to the previous edition is the addition of "Results of a questionnaire on dynamic module operating shock and vibration test conditions" in Annex A. Keywords: mechanical shock and vibration for dynamic modules, vibration testing