Roles and Responsibilities of TSOs in Strengthening the Design and Performance of NPPs

The provision of effective technical support is essential to optimize the safe operation of nuclear power plants (NPPs) and to maximize their availability and productivity. Renewed interest in new reactor build programs, not only in countries with already established nuclear programs but also in many other countries with limited or no work force experienced in the design, licensing, construction and operation of nuclear power plants, has resulted in a need for technical, scientific and support organizations (TSOs) to support regulatory bodies in carrying out their mandated responsibilities. The regulatory body must have adequate legal authority, technical and managerial competence, and human and financial resources to fulfill its responsibilities; Governments and regulatory bodies thus have an important responsibility in establishing standards and establishing the regulatory framework for protecting people and the environment against radiation risks. However, the prime responsibility for safety rests with the licensee. The TSAOs (Technical and scientific assistance organization) are expected to provide expertise, professional output, independent technical or scientific advice, competent judgment, services and assistance to the operating organization. (TSAO) can be established within or outside the utility that operates the plant, which can interface with various internal and external organizations. All services and interfaces should be well defined and function effectively. IAEA Safety Standard documents mentions that the prime responsibility for safety must rest with the person or organization responsible for facilities and activities that give rise to radiation risks. Additionally, the regulatory body shall obtain technical or other expert professional advice or services as necessary in support of its regulatory functions, but this shall not relieve the operating organization of its assigned responsibilities. This paper discusses the Roles and Responsibilities of TSOs and TSAOs, in strengthening the safety of NPPs. This work focuses on the IAEA Safety Standard Documents, as references, and the experience of some countries. Comparative studies were performed to comply with current Egyptian situation