Regulatory Guides on nuclear safety and security (YVL)

Authorisation

According to Section 7 r of the Nuclear Energy Act (990/1987), the Radiation and Nuclear Safety Authority (STUK) shall specify detailed safety requirements concerning the implementation of safety level in accordance with this Act.

Rules for application

The publication of a YVL Guide does not, as such, alter any previous decisions made by STUK. After having heard those concerned, STUK makes a separate decision on how a new or revised YVL Guide applies to the operating nuclear facilities or to those under construction, and to the licensees' operational activities. The Guides apply as such to new nuclear facilities.

When considering how new safety requirements laid down in YVL Guides apply to the operating nuclear facilities or to those under construction, STUK takes into account Section 7 a of the Nuclear Energy Act (990/1987): The safety of nuclear energy use shall be maintained at as high a level as practically possible. For the further development of safety, measures shall be implemented that can be considered justified considering operating experience, safety research and advances in science and technology.

In accordance with Section 7 r, paragraph three, of the Nuclear Energy Act, the safety requirements of the Radiation and Nuclear Safety Authority (STUK) are binding on the licensee, while preserving the licensee's right to propose an alternative procedure or solution to that provided for in the regulations. If the licensee can convincingly demonstrate that the proposed procedure or solution will implement safety standards in accordance with this Act, the Radiation and Nuclear Safety Authority (STUK) may approve a procedure or solution by which the safety level set forth is achieved.

Safety management of a nuclear facility

YVL A.1 Regulatory oversight of safety in the use of nuclear energy (pdf), 17 Mar 2020

YVL A.2 Site for a nuclear facility (pdf), 15 Feb 2019

YVL A.3 Leadership and management for safety (pdf), 15 Mar 2019

YVL A.4 Organisation and personnel of a nuclear facility (pdf), 15 Dec 2019

YVL A.5 Construction and commissioning of a nuclear facility (pdf), 15 Mar 2019

YVL A.6 Conduct of operations at a nuclear power plant (pdf), 15 Jun 2019

YVL A.7 Probabilistic risk assessment and risk management of a nuclear power plant (pdf), 15 Feb 2019

YVL A.8 Ageing management of a nuclear facility (pdf), 15 Feb 2019

YVL A.9 Regular reporting on the operation of a nuclear facility (pdf), 15 Feb 2019

YVL A.10 Operating experience feedback of a nuclear facility (pdf), 15 Feb 2019

YVL A.11 Security of a nuclear facility (pdf), 12 Feb 2021

YVL A.12 Information security management of a nuclear facility (pdf), 12 Feb 2021

Plant and system design

YVL B.1 Safety design of a nuclear power plant (pdf), 15 Jun 2019

YVL B.2 Classification of systems, structures and components of a nuclear facility (pdf), 15 Jun 2019

YVL B.3 Deterministic safety analyses for a nuclear power plant (pdf), 2 Sep 2019

YVL B.4 Nuclear fuel and reactor (pdf), 15 Mar 2019

YVL B.5 Reactor coolant circuit of a nuclear power plant (pdf), 2 Sep 2019

YVL B.6 Containment of a nuclear power plant (pdf), 15 Jun 2019

YVL B.7 Provisions for internal and external hazards at a nuclear facility (pdf), 15 Dec 2019

YVL B.8 Fire protection at a nuclear facility (pdf), 15 Dec 2019

Radiation safety of a nuclear facility and environment

YVL C.1 Structural radiation safety at a nuclear facility (pdf), 15 Mar 2019

YVL C.2 Radiation protection and exposure monitoring of nuclear facility workers (pdf), 1 Nov 2019

YVL C.3 Limitation and monitoring of radioactive releases from a nuclear facility (pdf), 15 Mar 2019

YVL C.4 Assessment of radiation doses to the public in the vicinity of a nuclear facility (pdf), 15 Mar 2019

YVL C.5 Emergency arrangements of a nuclear power plant (pdf), 20 Jan 2020

YVL C.6 Radiation monitoring at a nuclear facility (pdf), 15 Mar 2019

YVL C.7 Radiological monitoring of the environment of a nuclear facility (pdf), 19 Dec 2016

Nuclear materials and waste

YVL D.1 Regulatory control of nuclear safeguards (pdf), 24 May 2019

YVL D.2 Transport of nuclear materials and nuclear waste (pdf), 15 May 2019

YVL D.3 Handling and storage of nuclear fuel (pdf), 17 Mar 2020

YVL D.4 Predisposal management of low and intermediate level nuclear waste and decommissioning of a nuclear facility (pdf), 15 Dec 2019

YVL D.5 Disposal of nuclear waste (pdf), 13 Feb 2018

YVL D.6 Production of uranium and thorium in the mining and milling industry (withdrawn)

YVL D.7 Release barriers of spent nuclear fuel disposal facility (pdf), 13 Feb 2018

Structures and equipment of a nuclear facility

YVL E.1 Authorised inspection body and the licensee’s in-house inspection organisation (pdf), 15 Mar 2019

YVL E.2 Procurement and operation of nuclear fuel and control rods (pdf), 2 Sep 2019

YVL E.3 Pressure vessels and piping of a nuclear facility (pdf), 15 Dec 2019

YVL E.4 Strength analyses of nuclear power plant pressure equipment (pdf), 17 Mar 2020

YVL E.5 In-service inspection of nuclear facility pressure equipment with non-destructive testing methods (pdf), 15 Feb 2019

YVL E.6 Buildings and structures of a nuclear facility (pdf), 19 Jun 2020

YVL E.7 Electrical and I&C equipment of a nuclear facility (pdf), 15 Mar 2019

YVL E.8 Valves of a nuclear facility (pdf), 20 Jan 2020

YVL E.9 Pumps of a nuclear facility (pdf), 20 Jan 2020

YVL E.10 Emergency power supplies of a nuclear facility (pdf), 20 Jan 2020

YVL E.11 Hoisting and transfer equipment of a nuclear facility (pdf), 2 Sep 2019

YVL E.12 Testing organisations for mechanical components and structures of a nuclear facility (pdf), 15 Mar 2019

YVL E.13 Ventilation and air conditioning equipment of a nuclear facility (pdf), 23 Oct 2020