By a Council of Ministers’ Decree No. 992 of 14 December 2004, the assets of the Facility for Treatment and Conditioning of RAW generated from the operation of Kozloduy NPP and Interim Storage Facility were transferred to SERAW.
On 29 April 2005, SERAW was granted a License Series E, Reg. No. 01740, for operation of a nuclear facility for RAW management through Specialised Division Radioactive Waste – Kozloduy.
By a Council of Ministers’ Decision No. 683 dated 25 July 2005, SERAW was entrusted with the construction of a National Disposal Facility for Low- and Intermediate Level RAW (NDF).
On 14 July 2006, SERAW was granted a License Series E, No. 02088, for operation of a radioactive waste management facility at the Novi Han Site – through Specialised Division Permanent Storage Facility for Radioactive Waste – Novi Han. In compliance with the license, only RAW generated outside Kozloduy NPP (RAW from applications of sources of ionizing radiation in the areas of medicine, industry and research) are subject to management in the facility.
The Information Centre of SERAW in Kozloduy was established in October 2007. The Information Centre is aimed at providing the public with systematic and comprehensible information about the scope of operations of the Enterprise.
On 20 December 2008, a Council of Ministers’ Decision No. 839 was taken regarding declaring Kozloduy NPP’s Units 1 and 2 RAW management facilities and transfer thereof to SERAW for the purpose of management.
On 18 October 2010, SERAW was granted Licenses Series E, No. 03492/03493, for operation of Units 1 and 2 as RAW management facilities subject to decommissioning through Specialised Division Decommissioning – Kozloduy.
In 2011, meetings were held for public discussion of the Environmental Impact Assessment Report (EIA Report) for the National Disposal Facility for Low- and Intermediate Level Radioactive Waste.
On 1 November 2012, the fourth Specialised Division National Disposal Facility was officially established within SERAW’s organizational structure.
By Decision No. 1038 of 19 December 2012, the Council of Ministers declared the shutdown Units 3 and 4 of Kozloduy NPP radioactive waste management facilities and these were transferred to SERAW for the purpose of management.
On 26 February 2013, SERAW was granted Licenses Series E, No. 04152/04153, for operation of Units 3 and 4 as RAW management facilities subject to decommissioning through Specialised Division Radioactive Waste – Kozloduy.
On 14 November 2014, SERAW was granted Licenses Series E, No. 4650/4651, for decommissioning of Units 1 and 2 through Specialised Division Units 1-4 Decommissioning.
In the period 16 to 30 April 2015, State Enterprise Radioactive Waste held a series of public consultation meetings on the updated Environmental Impact Assessment Report (EIA Report) for the National Disposal Facility.
On the 1st June 2015, SERAW was granted a Licence for operation of a radioactive waste management facility through Specialized Division RAW-Kozloduy. The document was issued on the 28th April 2015 and renewed the previous licence for these activities from 2008. The validity period of the new licence is 10 years.
On 28 July 2016, SERAW was granted Licenses Series IE No. 5099/5100 for decommissioning of Units 3 and 4 through Specialised Division Units 1-4 Decommissioning.
On 23 December 2016, the Ministry of Environment and Water issued an EIA Decision No. 7-7/2016 approving the implementation of an investment proposal Construction of a National Disposal Facility for Low- and Intermediate Level Radioactive Waste.
On 5 May 2017, the Chairman of the Nuclear Regulatory Agency issued a Permit for construction of the National Disposal Facility.
On 9 June 2017, the Ministry of Regional Development and Public Works issued a Permit to SERAW for construction of the National Disposal Facility for Low- and Intermediate Level Radioactive Waste on Radiana site (Construction Permit No. РС-21/25.05.2017). The Construction Permit became effective on 26 June 2017.
On 29 August 2017, SERAW officially started construction of the National Disposal Facility for Low- and Intermediate Level Radioactive Waste. At an official groundbreaking ceremony on Radiana site, the Minister of Energy, Temenuzhka Petkova, and the Executive Director of SERAW, Dilyan Petrov, symbolically broke ground of the future National Disposal Facility.
On the 2nd February 2018, the Executive Agency “Bulgarian Accreditation Service” officially accredited Specialized Division – Inspection Body Type C “RELEASE FROM REGULATORY CONTROL” within the structure of State Enterprise Radioactive Waste.
On the 6th March 2018, a Size Reduction and Decontamination Workshop (SRDW) for materials from decommissioning was commissioned. In the SRDW are installed facilities for mechanical, chemical and electrochemical decontamination of materials from equipment dismantled from Kozloduy NPP Units 1-4.
On the 12th November 2018 started the first 20-week operational campaign of the newly built Plasma Melting Facility (PMF). The facility is intended for treatment of low- and intermediate-level RAW with a high-volume reduction factor. The annual throughput of the PMF is 250 t.
On the 12th July 2019 was renewed the Licence for operation of a radioactive waste management facility through Specialized Division Permanent Repository for Radioactive Waste – Novi han, with SERAW being a Licensee. The licence validity period is until 31 December 2025.
On the 3rd September 2019, the completion of dismantling activities in the Turbine Hall of Units 1-4 – the conventional island of the shutdown nuclear facilities, was reported.