Comprehensive safety standards exist for every aspect of the vehicle which could cause injury or worse if it malfunctioned. Grouped under the heading of ‘Functional Safety’, these requirements are fundamental to the design strategy of the vehicle and continue throughout the lifetime of the vehicle. This white paper will examine the functional safety process and how it impacts the design process for EVs and HEVs and look at two critical examples: EPS assist systems and the high power inverter that forms the drive train. The white paper will then consider some of the essential work products defined in the ISO 26262 standard, including the hardware, documentation and support.