On 4 February 2014, the transformation of National Electricity Company EAD was registered in the Commercial Register. As a result, the electricity transmission network was spun-off from the National Electricity Company to Electricity System Operator EAD. The transformation is part of the restructuring of the Bulgarian electricity sector in compliance with the requirements of EU's Third Energy Package (implemented into the Bulgarian Energy Act in July 2012) and was prepared by Kambourov & Partners.