The main lines of scientific expertise of M.O. Degteva are dose reconstruction of radiation exposure and radiation protection of population. Under the guidance of M.O. Degteva a number of scientific studies commissioned by the Federal Medical-Biological Agency (FMBA of Russia) are performed as well as surveys on international scientific issues within the framework of the Russian-American Joint Coordinating Committee for Radiation Effects Research (JCCRER) and European Atomic Energy Community (Euratom).