Abstract
The article deals with the aspects of regulatory, scientific and technical support of
operational safety of nuclear power plants in Ukraine. A critical analysis of scientific literature and
regulatory documents regarding existing approaches to addressing related to assessing the service
life of power equipment and making decisions on extending its service life is conducted. In the
course of studying the scientific literature, the authors analyze the calculation methods for
determining the service life, with a special emphasis on modern scientific works related to the
reassessment of the service life and monitoring of the technical condition of nuclear power plants
by various parameters. The article contains a critical assessment of the national regulatory
documents used to ensure the safe operation of nuclear power plants in general and their individual
elements. Based on the analysis, the authors identify a number of problematic tasks that remain
unresolved to date, especially with regard to scientific justification based on the requirements of
standards for high-risk facilities and the service life of power equipment.