Regulatory Guides on nuclear safety (YVL)

STUK is carrying out a project for renewing the whole structure of the YVL guides. The drafts of the new YVL guides can be found and be commented on our extranet https://ohjeisto.stuk.fi/YVL/?en=on.

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), which prescribes that 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 and 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 the procedure or solution by which the safety level set forth is achieved.

General guides

Number	Title	Issued
YVL 1.0	Safety criteria for design of nuclear power plants	12 Jan 1996
YVL 1.1	Regulatory control of safety at nuclear facilities	10 Feb 2006
YVL 1.2	Documents pertaining to safety control of nuclear facilities	11 Sep 1995
YVL 1.3	Mechanical components and structures of nuclear facilities. Approval of testing and inspection organizations	17 Mar 2003
YVL 1.4	Management systems for nuclear facilities	9 Jan 2008
YVL 1.5	Reporting nuclear facility operation to the Radiation and Nuclear Safety Authority	8 Sep 2003
YVL 1.6	Qualification of control room operators for nuclear power plants	5 Oct 2006
YVL 1.7	Functions important to nuclear power plant safety, and training and qualification of personnel	28 Dec 1992
YVL 1.8	Repairs, modifications and preventive maintenance at nuclear facilities	2 Oct 1986
YVL 1.9	Quality assurance during operation of nuclear power plants	13 Nov 1991
YVL 1.10	Requirements for siting a nuclear power plant	11 Jul 2000
YVL 1.11	Nuclear power plant operating experience feedback	22 Dec 1994
YVL 1.12	INES classification of events at nuclear facilities	16 Jan 2002
YVL 1.13	Nuclear power plant outages	9 Jan 1995
YVL 1.14	Mechanical equipment and structures of nuclear facilities. Control of manufacturing	4 Oct 1999
YVL 1.15	Mechanical equipment and structures of nuclear facilities. Construction inspection	28 Apr 2008
YVL 1.16	Regulatory control of nuclear liability insurances	22 Mar 2000

Systems

Number	Title	Issued
YVL 2.0	Systems design for nuclear power plants	1 Jul 2002
YVL 2.1	Nuclear power plant systems, structures and components and their safety classification	26 Jun 2000
YVL 2.2	Transient and accident analyses for justification of technical solutions at nuclear power plants	26 Aug 2003
YVL 2.4	Primary and secondary circuit pressure control at a nuclear power plant	24 Mar 2006
YVL 2.5	The commissioning of a nuclear power plant	29 Sep 2003
YVL 2.6	Seismic events and nuclear power plants	19 Dec 2001
YVL 2.7	Ensuring a nuclear power plant's safety functions in provision for failures	20 May 1996
YVL 2.8	Probabilistic safety analysis in safety management of nuclear power plants	28 May 2003

Pressure equipment

Number	Title	Issued
YVL 3.0	Pressure equipment of nuclear facilities	9 Apr 2002
YVL 3.1	Nuclear facility pressure vessels (in Finnish)	1 Jul 2005
YVL 3.3	Nuclear facility piping	26 Jun 2006
YVL 3.4	Approval of the manufacturer of nuclear pressure equipment	14 Jan 2004
YVL 3.5	Ensuring the firmness of pressure vessels of a NPP (in Finnish)	5 Apr 2002
YVL 3.7	Pressure equipment of nuclear facilities. Commissioning inspection	26 Sep 2008
YVL 3.8	Nuclear power plant pressure equipment. In-service inspection with non-destructive testing methods	22 Sep 2003
YVL 3.9	Nuclear power plant pressure equipment. Construction and welding filler materials (in Finnish)	5 Nov 2004

Buildings and structures

Number	Title	Issued
YVL 4.1	Concrete structures for nuclear facilities	22 May 1992
YVL 4.2	Steel structures for nuclear facilities	19 Dec 2001
YVL 4.3	Fire protection at nuclear facilities	1 Nov 1999

Other structures and components

Number	Title	Issued
YVL 5.1	Nuclear power plant diesel generators and their auxiliary systems (in Finnish)	23 Jan 1997
YVL 5.2	Electrical power systems and components at nuclear facilities	24 Jun 2004
YVL 5.3	Nuclear facility valve units	28 Apr 2008
YVL 5.5	Instrumentation systems and components at nuclear facilities	13 Sep 2002
YVL 5.6	Air-conditioning and ventilation systems and components of nuclear facilities	25 Nov 2004
YVL 5.7	Nuclear facility pump units	28 Apr 2008
YVL 5.8	Hoisting and transfer functions at nuclear facilities	26 Sep 2008

Nuclear materials

Number	Title	Issued
YVL 6.1	Control of nuclear fuel and other nuclear materials required in the operation of nuclear power plants	19 Jun 1991
YVL 6.2	Design bases and general design criteria for nuclear fuel	1 Nov 1999
YVL 6.3	Regulatory control of nuclear fuel and control rods	28 May 2003
YVL 6.4	Transport packages and packagings for radioactive material	4 Apr 2005
YVL 6.5	Transport of nuclear material and nuclear waste	4 Apr 2005
YVL 6.7	Quality management of nuclear fuel	17 Mar 2003
YVL 6.8	Storage and handling of nuclear fuel	27 Oct 2003
YVL 6.9	The national system of accounting for and control of nuclear material (in Finnish)	23 Sep 1999
YVL 6.10	Reports to be submitted on nuclear materials (in Finnish)	23 Sep 1999

Radiation protection

Number	Title	Issued
YVL 7.1	Limitation of public exposure in the environment of and limitation of radioactive releases from a nuclear power plant (in Finnish and in Swedish)	22 Mar 2006
YVL 7.2	Assessment of radiation doses to the population in the environment of a nuclear power plant	23 Jan 1997
YVL 7.3	Calculation of the dispersion of radioactive releases from a nuclear power plant	23 Jan 1997
YVL 7.4	Nuclear power plant emergency preparedness	9 Jan 2002
YVL 7.5	Meteorological measurements of a nuclear power plant	28 May 2003
YVL 7.6	Monitoring of discharges of radioactive substances from a nuclear power plant (in Finnish)	22 Mar 2006
YVL 7.7	Radiation monitoring in the environment of a nuclear power plant (in Finnish)	22 Mar 2006
YVL 7.8	Environmental radiation safety reports of a nuclear power plant (in Finnish)	22 Mar 2006
YVL 7.9	Radiation protection of workers at nuclear facilities	21 Jan 2002
YVL 7.10	Monitoring of occupational exposure at nuclear facilities	29 Jan 2002
YVL 7.11	Radiation monitoring systems and equipment of a nuclear power plant	13 Jul 2004
YVL 7.18	Radiation safety aspects in the design of a nuclear power plant	26 Sep 2003

Radioactive waste management

Number	Title	Issued
YVL 8.1	Disposal of low and intermediate level waste from the operation of nuclear power plants	10 Sep 2003
YVL 8.2	Clearance of nuclear waste and decommissioned nuclear facilities	18 Feb 2008
YVL 8.3	Treatment and storage of low and intermediate level waste at a nuclear power plant	29 Jun 2005
YVL 8.4	Long-term safety of disposal of spent nuclear fuel	23 May 2001
YVL 8.5	Operational safety of a disposal facility for spent nuclear fuel	23 Dec 2002

[ Regulatory guides published in 2010 ]

Page updated 19/07/2011