Prof. V. Ivantchenko (CERN, ESA)
We will summarize the recent and current activities of the Geant4 working group responsible of the standard package of electromagnetic physics. The major recent activities include an design iteration in energy loss and multiple scattering domain providing "process versus models" approach, and development of the following physics models: multiple scattering, ultra relativistic muon physics, photo- bsorbtion-ionisation model, ion ionisation, optical processes. An automatic acceptance suite of validation of physics is under development. Also we will comment on evolution of the concept of physics list.