The Energy Performance Certificate (EPC) is valid for ten years and concerns to all new and existing buildings when sold or rented out and all buildings in the public and broader public sector.

The Energy Performance Certificate includes evaluation results of energy inspector and recommendations for improving the energy efficiency of the building.

The energy audit is an important diagnostic tool of the energy situation of the existing buildings and the potential to improve, but the implementation of legislation on the energy performance of new buildings. The private Energy Inspector is part of the Register of Energy Inspectors ministry inspects the building and ranks in energy class, by the ratio of consumption of the building to the consumption of the reference building