This part of IEC 62433 provides a method for deriving a macro-model to allow the simulation of the radiated emission levels of an Integrated Circuit (IC). This model is commonly called Integrated Circuit Emission Model Radiated Emission, ICEM-RE. The model is intended to be used for modelling a complete IC, with or without its associated package, a functional block and an Intellectual Property (IP) block of both analogue and digital ICs (input/output pins, digital core and supply), when measured or simulated data cannot be directly imported into simulation tools. The proposed IC macro-model will be inserted in 3D electromagnetic simulation tools so as to: " predict the near-radiated emissions from the IC " evaluate the effect of the radiated emissions on neighbouring ICs, cables, transmission lines, etc. This part of IEC 62433 has two main parts: " the first is the electrical description of ICEM-RE macro-model elements, " the second part proposes a universal data exchange format called REML based on XML. This format allows encoding the ICEM-RE in a more useable and generic form for emission simulation.