National Security and Defense Council of Ukraine
In 2000-2002 he was a Chief of Staff of the National Security and Defense Council of Ukraine, Director of the Ukrainian Institute for Environmental Research and Resources under the National Security and Defense Council of Ukraine. He organized the preparation of materials for meetings of the National Security and Defense Council on important issues, including scientific and technological safety and innovation policy, water safety and drinking water quality, global climate change and national policy in this area, ensuring technogenic and environmental safety, etc.