The Agency is an administration that assists the Chairman in the implementation of his/her authorities and technically ensures his/her activities. In the exercise of the powers thereof, two Deputy-Chairmen shall assist the Chairman.

The two deputies shall be designated by a decision of the Council of Ministers on a motion by the NRA Chairman and shall be appointed by the Prime Minister.On December 23, 2020, with a decision of the Council of Ministers, Mr. Tsanko Bachiyski is designated as Chairman of NRA. The Deputy Chairmen are Dipl. Eng. Borislav Stanimirov and Alexey Alexiev.

Tsanko Bachiyski

Chairman of Nuclear Regulatory AgencyMr. Tsanko Bachiyski was born on December 8, 1958 in the town of Gotse Delchev.

He was appointed as Chairman of the Nuclear Regulatory Agency by Decision № 955 of the Council of Ministers of the Republic of Bulgaria from 23th of December 2020.


The professional career of Mr. Tsanko Bachiyski started at Kozloduy NPP EAD in 1984 in the Turbine Hall of Units 1–4. In 1985, he moved to a new position at Kozloduy NPP EAD at Units 5-6, where he took part in the commissioning of the new units.Mr. Bachiyski has consecutively held the positions of Technologist, Deputy Unit Head, Head of the Turbine Equipment Sector, Head of the Maintenance Department and Chief Engineer of Units 5-6 of Kozloduy NPP EAD.

In the period 2010 – 2016 Mr. Bachiyski was Head of the Operation Division, and from October 2016 to March 2019 he served as Deputy Chief Executive Officer of Kozloduy NPP EAD.During his work at Kozloduy NPP EAD, Tsanko Bachiyski was involved in the implementation of the Modernization Program for the Units 5 and 6. He coordinated the work of the Maintenance Department and managed the execution of part of the measures of the Program.

As Head of the Operation Division, he was responsible for the implementation of the strategy for the management of spent nuclear fuel and the supply of fresh nuclear fuel, and as Deputy Chief Executive Officer, he supervised the implementation of the plant’s safety improvement programs.Tsanko Bachiyski graduated from the Technical University in Sofia, Faculty of Power Engineering and Power Machines, Thermal and nuclear power engineering department in 1984.

Borislav Stanimirov, Dipl. Eng.

Deputy Chairman of the Nuclear Regulatory AgencyBorn on the 1 April 1955.Eng. Borislav Stanimirov was appointed as Deputy Chairman of the regulatory authority on nuclear safety and radiation protection in November 2001 by a governmental decision.

Prior to his appointment as NRA Deputy Chairman, Borislav Stanimirov worked for 6 years in the Kozloduy NPP as a senior reactor operator engineer of Units 3 and 4. From 1988 is employed in the Committee on the Use of Atomic Energy for Peaceful Purposes (CUAEPP).

As an expert and nuclear safety inspector, was concerned with monitoring of the safety of Units 1 to 4 in the Kozloduy NPP including the licensing of activities in implementing the programs to increase the safety of the units. His last position in CUAEPP is Head of Department ”Safe Operation of NPP”.

In 1982 he graduated Faculty of Power Engineering and Power Machines in the Technical University – Sofia, with major in Thermal and Nuclear Power Engineering.Eng. Stanimirov is a member of the European Nuclear Safety Regulators Group.

Alexey Alexiev

Deputy Chairman of the Nuclear Regulatory AgencyMr. Alexey Alexiev was appointed as Deputy Chairman of the Nuclear Regulatory Agency by a decision of the Government from 19th September 2013.

He has worked in the NRA as Head of division “Decommissioning and Radioactive Waste Management” since the end of 2010.He has worked at the Kozloduy NPP and State Enterprise Radioactive Waste.

His professional career began in 1983 in Kozloduy NPP as a chemist.Between 1990 and 2005 he has worked as Head of Department Radiochemistry; Head of Department of Safety; Head of Department Control; Head of Department Radioactive Waste and spent nuclear fuel.

From 2005 to 2010 Mr. Alexiev was director of Department of radioactive waste – Kozloduy of the State Enterprise Radioactive Waste.He graduated the Faculty of Chemistry of the St. Kliment Ohridski, University of Sofia.