ARCHIVES HISTORIQUES 
DE LA COMMISSION 
 
 
 
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DOCUMENTS "COM" 
 
 
 
 
COM (85) 137 
 
 
 
Vol. 1985/0045 
  
 
Disclaimer  
Conformém ent au règlement (CEE, Euratom) n° 354/83 du Conseil du 1er février 1983 
concernant l'ouverture au public des archives historiques de la Communauté économique 
européenne et de la Communauté européenne de l'énergie atomique (JO L 43 du 15.2.1983, 
p. 1), tel que modifié par le règlement (CE, Euratom) n° 1700/2003 du 22 septembre 2003 
(JO L 243 du 27.9.2003, p. 1), ce dossier est ouvert au public. Le cas échéant, les documents 
classifiés présents dans ce dossier ont été déclassifiés conformément à l'article 5 dudit 
règlem ent. 
In accordance with Council Regulation (EEC, Euratom) No 354/83 of 1 February 1983 
concerning the opening to the public of the historical archives of the European Econom ic 
Communit y and the European Atom ic Energy Communit y (OJ L 43, 15.2.1983, p. 1), as 
amended by Regulation (EC, Euratom) No 1700/2003 of 22 September 2003 (OJ L 243, 
27.9.2003, p. 1), this file is open to the public. Where necessary, classified documents in this 
file have been declassified in conformity with Article 5 of the aforementioned regulation. 
In Übereinstimmung mit der Verordnung (EWG, Euratom) Nr. 354/83 des Rates vom  1. 
Februar 1983 über die Freigabe der historischen Archive der Europäischen 
Wirtschaftsgemeinschaft und der Europäischen Atomgem einschaft (ABI. L 43 vom  15.2.1983, 
S. 1), geändert durch die Verordnung (EG, Euratom) Nr. 1700/2003 vom 22. Septem ber 2003 
(ABI. L 243 vom 27.9.2003, S. 1), ist diese Datei der Öffentlichkeit zugänglich. Soweit 
erforderlich, wurden die Verschlusssachen in dieser Datei in Übereinstimmung mit Artikel 5 
der genannten Verordnung freigegeben. 
KOMMISSIONEN FOR DE EUROPÆISKE FÆLLESSKABER
KOM(85) 137 endelig udg.  
Bruxelles, den 24. april 1985
MEDDELELSE TIL RÅDET FRA KOMMISSIONEN
vedrørende en aftale mellem Det europæiske Atomenergifællesskab  
repræsenteret ved Kommissionen for De;· europæiske Fællesskaber og  
ni andre organer om vedtægter for sammenslutningen vedrørende  
et rapporteringssystem for unormale begivenheder (AORSA).
KOM(85) 137 endelig udg.

MEDDELELSE TIL RÅDET FRA KOMMISSIONEN
vedrørende en aftale mellem Det europæiske Atomenergi fæl lesskab  
repræsenteret ved Kommissionen for De europæiske Fællesskaber og  
ni andre organer* om vedtægter for sammenslutningen vedrørende  
et rapporteringssystem for unormale begivenheder (AORSA).
1. Som led i  det af Rådet vedtagne reaktorsikkerhedsprogram (Rådets afgørelse  
af 22.12.1983 - EFT nr. L 3 af 5.1.1984) har Det fælles Forskningscenter
i  Ispra etableret og igangsat et rapporteringssystem for unormale begiven­
heder (AORS). Oplysninger vedrørende unormale begivenheder befinder sig i  
de forskellige nationale databanker, som parterne i  denne aftale har oprettet.
2. AORSA skal fremme udvekslingen af data om unormale hændelser mellem parterne,  
indsamle oplysninger om begivenheder, der har eller kan få konsekvenser for  
sikker drift af kernekraftværker, videregive driftserfaringer til kernekraft­
værkerne og tilskynde til analyse af data om unormale hændelser. AORSA skal  
oprette en central databank for unormale begivenheder, som er baseret pi op­
lysninger, sammenslutningens medlemmer fremskaffer gennem de forskellige  
nationale rapporteringssystemer. Denne aftale vedrørende forskning og udvikling  
inden for kernereaktorsikkerhed kan blive til stor nytte. Den vil indebære,
at der blandt sammenslutningens medlemmer frit vil blive udvekslet data om  
hændelser, der indtræffer under driften af kernekraftværker, og som har for­
bindelse med sikkerheden, og at alle relevante data bliver samlet i  en omfattende  
database. Denne database vil være et værdifuldt hjælpemiddel for alle myndigheder,  
der er involveret i  nuklear sikkerhed.
3. Kommissionen underretter Ridet om, at den har til hensigt at indgi vedlagte  
aftale i  henhold til Euratom-traktatens artikel 101, stk. 3.
Verenigde Energiebedrijven van het Scheldeland (EBES)  
Institute of Radiation Protection (IRP)
Commissariat à l'Energie Atomique (CEA)
Electricité de France (EDF)
Technische Vereinigung der Grosskraftwerksbetreiber (VGB)  
Ente Nazionale per l'Ene gia Elettrica (ENEL)  
Gemeenschappelijke Kernfr°rgiecentrale Nederland (GKN)  
Statens Karnkraftinspektion (SKI)
Nuclear Regulatory Commission (NRC)(Belgien)
(Finland)
(Frankrig)
(Frankrig)
(Tyskland)
(Italien)
(Nederlandene)
(Sverige)
(USA)

AFTALE Nr.
MELLEM
DET EUROPÆISKE ATOMENERGI FÆLLESSKAB (EURATOM)
VERENIGDE ENERGIEBEDRIJVEN VAN HET SCHELDELAND (EBES)
INSTITUTE OF RADIATION PROTECTION (IRP)
COMMISSARIAT A L’ENERGIE ATOMIQUE (CEA)
ELECTRICITE DE FRANCE (EDF)
TECHNISCHE VERËINIGUNG DER GROSSKRAFTWERKSBETREIBER (VGB)
ENTE NAZIONALE PER L1ENERGIA ELETTRICA (ENEL)  
GEMEENSCHAPPELIJKE KERNENERGIECENTRALE NEDERLAND (GKN)
SWEDISH NUCLEAR POWER INSPECTORATE (SKI)
NUCLEAR REGULATORY COMMISSION (NRC)
om ordningen for Sammenslutningen vedrørende rapporteringssystemet for unormal  
hændelser (AORSA)
Det europæiske Atomenergi fæl lesskab (EURATOM), herefter benævnt "Fællesskabet",  
repræsenteret ved Kommissionen for De europæiske Fællesskaber, der med henblik  
på undertegnelse af denne Aftale er repræsenteret ved direktøren for Det  
falles Forskningscenters anlæg i  Ispra George R. BISHOP,
med hovedsæde i  Verenigde Energiebedrijven van het Scheldeland (EBES), med  
hovedsæde i.Doel (Belgien), repræsenteret ved
Institute of Radiation Protection (IRP), med hovedsæde i  Helsinki (Finland),  
repræsenteret ved
Commissariat à L'Energie Atomique (CEA), med hovedsæde i  Fontenay-aux-Roses  
(Frankrig), repræsenteret ved

-  2 -
Electricité de France (EDF), med hovedsæde i  Paris (Frankrig), repræsenteret  
ved
Technische Vereinigung der Grosskraftwerksbetreiber (VGB), med hovedsæde i  
Essen (Tyskland), repræsenteret ved
Ente Nazionale per l'Energia Elettrica (ENEL), med hovedsæde i  Rom (Italien),  
repræsenteret ved
Gemeenschappelijke Kernenergiecentrale Nederland (GKN), med hovedsæde i  Arnhem  
(Nederlandene), repræsenteret ved
Swedish Nuclear Power Inspectorate (SKI), med hovedsæde i  Stockholm (Sverige),  
repræsenteret ved
Nuclear Regulatory Commission (NCR), med hovedsæde i  Washington (USA), repræ­
senteret ved
hvilke 10 (ti) parter i  det følgende benævnes "Parterne i  Aftalen", eller  
kort "Parterne", og
ud fra følgende betragtninger:
Parterne i Aftalen driver og bruger databanker, der indsamler sikkerhedsrela­
terede erfaringer fra driften af kernekraftsanlæg;
det vil være en fordel for Parterne i  Aftalen at harmonisere deres udviklings­
arbejde pi ovennævnte område, at tilvejebringe og udveksle "sikkerhedsr.elate-  
rede" hændelsesdata vedrørende driften af kernekraftsanlæg eller andre nukleare  
anlæg;
Rådet for De europæiske Fællesskaber har godkendt et forsknings- og oplærings­
program med hensyn til nuklear reak\orsikkerhed, hvor udviklingen og driften  
af et rapporteringssystem for unormale hændelser (AORS), i  det følgende  
benævnt "Systemet", er en de! af reaktorsikkerhedsprogrammet (*);
Systemet er blevet monteret og er operationelt på Det fælles Forskningscenters  
anlæg i  Ispra -
ER ENEDES OM FØLGENDE:
(*) Ifr. Rådets vedtagelse of 22 December 1983 (EF-Tidende L3, 5.1.84)

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ARTIKEL 1 - Formål
Parterne i  Aftalen er enige om at stifte en Sammenslutning vedrørende  
rapporteringssystemet for unormale hændelser (AORSA), i  det følgende  
benævnt "Sammenslutningen", som nærmere beskrevet nedenfor.
ARTIKEL 2 ~ Sammenslutningens formål
Sammenslutningen har det formål at gøre "sikkerhedsrelaterede" erfaringer  
fra driften tilgængelige for offentlige værker, licensudstedende myndig­
heder og andre institutioner, der er interesseret i  nuklear sikkerhed.
Den skal særlig:
a) fremme udvekslingen af unormale hændelsesdata mellem Parterne,
b) indsamle oplysninger om begivenheder (hændelser eller forsømmelser),  
der har eller kunne have følger for kernekraftsværkers sikre drift,
c) give tilbagemelding om kollektive erfaringer fra driften til kerne­
kraftsværkerne,
d) tilskynde til analyser af data om unormale hændelser.
ARTIKEL 3 - Forsamlingen
3.1 SAMMENSÆTNING
Hver Part i  Aftalen udpeger en repræsentant til Forsamlingen (medlem af
Forsamlingen).
Repræsentanten, kan på sin side udpege en stedfortræder for samme Part i
Aftalen til at være hans suppleant i  Forsamlingen. Stedfortræderen skal
have samme rettigheder som medlemmet selv.
3.2 STEMMERET
a) Hvert medlem af Forsamlingen har ret til én stemme. Et medlem af For­
samlingen kan overdrage sin stemme til et andet medlem af Forsamlingen.  
Generalsekretæren skal skriftligt underréttes om enhver sådan overdra­
gelse. Der må ikke overdrages et medlem mere end én stemme.
b) Bortset fra tilfælde, hvor denne Aftale bestemmer noget andet, kræves  
der til vedtagelse af Forsamlingens beslutninger enstemmighed.
c) Hvor det udtrykkeligt er fastsat i  denne Aftale, at et flertal af de  
af medlemmerne af Forsam. ingen afgivne stemmer er tilstrækkeligt, må  
mindst halvtreds procent af medlemmerne være til stede (det beslut­
ningsdygtige antal). I tilfælde af stemmelighed er formandens stemme  
udslaggivende.
d) I undtagelsestilfælde, som defineres af Forsamlingens formand, kan  
Forsamlingen træffe beslutninger ved skriftlig procedure.

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3.3 FUNKTIONER
a) Forsamlingen er ansvarlig for ledelsen af Sammenslutningen.
Den skal træffe de tilgrundliggende beslutninger for at virkeliggøre  
Sammenslutningens mål og skal aflægge beretning til Parterne.
b) Særlig skal Forsamlingen
- styre Systemets drift og underrette Kommissionen herom,
træffe beslutning om, hvorvidt jiye juridiske personer kan tiltræde Aftalen,
- tage stilling til anmodninger om at blive bruger af Systemet,
- tage stilling til, om analyser, der foretages gennem Systemet, skal  
offentliggøres og distribueres,
- forelægge Parterne forhandlingsprotokollen for hvert møde i  Forsam­
lingen.
3.A MØDER
Forsamlingen holder møde mindst én gang om året.
Der indkaldes til ekstraordinære møder enten på begæring af en tredjedel  
af Forsamlingens medlemmer på begæring af dens formand eller af general­
sekretæren.
3.5 FORMAND
Forsamlingen vælger sin farmand af sin midte.
Til valget af formand kræves der et flertal af de af medlemmerne af For­
samlingen afgivne stemmer.
Formandens hverv gælder for to år, på betingelse af, at hans/hendes orga­
nisation fortsat som medlem har en Part i  Aftalen, såfremt formanden er  
ude af stand til at udføre sit hverv, overdrages dette for den resterende  
funktionsperiode til den tidligere formand.
3.é >  EKSPERTER
Hver Part i  Aftalen kan udpege indtil to eksperter, der tilhører deres  
organisation, og som skal deltage i  Forsamlingens møder med rådgivende  
funktion, men uden stemmeret.
3.7 FORRETNINGSORDEN
Forsamlingen vedtager selv sin forretningsorden.
ARTIKEL 4 - Generalsekretær
4.1 Sammenslutningens generalsekretær skal repræsentere Kommissionen. Han  
udpeges af Kommissionen og udnævnes af Forsamlingen. En sådan udnævnelse  
kræver et flertal af de af Forsamlingens medlemmer afgivne stemmer.

- 5 -
4.2 Generalsekretærens opgave er at sikre Sammenslutningens tilfredsstillende  
drift, navnlig at
- udarbejde og tilstille Parterne en halvårlig, ajourført oversigt over  
Systemet,
- fi Systemet til at virke og gennemføre Forsamlingens beslutninger, men  
kun inden for grænserne af det godkendte kommissionsprogram,
- tilrettelægge Forsamlingens møder og udføre det hermed forbundne admi­
nistrative arbejde.
4.3 Generalsekretæren skal normalt have bopæl i  Det fælles Forskningscenters  
Ispra-anlæg under Kommissionen for De europæiske Fællesskaber.
ARTIKEL 5 - Levering af data og anmodning om datainformation
5.1 Parternes levering af data om hændelser skal ske efter bestemmelserne i  
bilag 1 til denne Aftale.
5.2 For adgangen til Systemets databanker gælder bestemmelserne i  standard­
kontrakten (bilag 2 til denne Aftale).
5.3 Det kræves også af Parterne i  Aftalen, at de underskriver den under 5.2  
omhandlede standardkontrakt. Imidlertid er informationerne tilgængelige  
for Parterne vederlagsfrit, således at artikel 3 og bilag II i  den nævnte  
standardkontrakt ikke finder anvendelse på dem.
ARTIKEL 6 - Gyldighedsperiode
6.1 Denne Aftale træder i  kraft den og udløber den 31.
december 1987.
Den kan forlænges efter aftale mellem Parterne.
6.2 Med tre måneders varsel, der ved anbefalet brev gives til Forsamlingen  
gennem generalsekretæren, kan hver Part i  denne Aftale på et hvilket som  
helst tidspunkt bringe sin deltagelse i  Aftalen til ophør og fjerne sine  
data fra Systemet, dog uden at ansvar eller forpligtelser, der er opstået,  
inden et sådant ophør får virkning, herved ændres.
ARTIKEL 7 - Ansvar for omkostninger
7.1 Hver Part i  Aftalen bærer s-'ne egne omkostninger, der opstår i  forbindelse  
med opfyldelsen af denne Aftale og i  forbindelse r.ied dens eget program.
7.2 Kommissionen bærer inden for rammerne af dets godkendte program udgifterne  
til Systemets drift og til generalsekretæren.

-  6 -
ARTIKEL 8 - Erstatningsansvar
Alle problemer vedrørende erstatningsansvar skal behandles efter loven  
i  det land, hvor den begivenhed, som har givet anledning til sådanne  
problemer, er indtruffet.
ARTIKEL 9 - Værnetingsklausul og lovvalg
9.1 Domstolen for De europæiske Fællesskaber har kompetence til at afgøre  
alle tvister, der opstår i  forbindelse med denne Aftale.
9.2 Denne Aftale er underkastet belgisk lov, jf. dog artikel 8 i  denne  
Aftale.
ARTIKEL 10 - Andre juridiske personers tiltrædelse af Aftalen
10.1 Ansøgninger om tiltrædelse af Aftalen skal sendes til Forsamlingen  
gennem Sammenslutningens generalsekretær.
I ansøgningen skal det anføres, at ansøgeren er villig til at indtræde  
i  de i  denne Aftale fastsatte rettigheder og forpligtelser fra det  
tidspunkt, da den tiltrædes.
10.2 Forsamlingen kan beslutte, at ansøgeren kan tiltræde denne Aftale,  
forudsat at de betingelser for medlemskab, der er fastsat i  artikel
11.1, opfylaes.
10.3 Formanden for Forsamlingen underretter skriftligt gennem generalsekre­
tæren ansøgeren om Forsamlingens beslutning.
Tiltrædelsen får virkning fra det tidspunkt, hvor ansøgeren modtager  
dette brev og underskriver en erklæring gående ud på, at de i  denne  
Aftale fastsatte rettigheder og forpligtelser godkendes.
ARTIKEL 11 - Medlemskab
11.1 Medlem af Sammenslutningen kan være
a) enhver privat, statslig eller anden organisation, der giver licens  
på eller selv driver et kernekraftsanlæg eller et andet nukleart  
anlæg.
b) Systemets driftsleder.
11.2 Ethvert i  artikel 11.1 a) anført medlem forpligter sig til
- regelmæssigt at levere informationer om de unormale hændelser, der  
kan indtræffe i  kernekraftsanlæg eller andre anlæg;
- at bevise, at det opfylder betingelserne i  artikel 11.1 a).
11.3 Undtagelsesvis og kun med en særlig begrundelse herfor kan organisa­
tioner, der ikke opfylder betingelserne i  11.1, tiltræde Aftalen,  
såfremt Forsamlingen godkender noget sådant. Tiltrædelsesprocedurerne  
er i  øvrigt de samme som anført i  artikel 10.

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ARTIKEL 12 - Eksklusion af en part
12.1 Hvis en Part ikke opfylder sine forpligtelser i  henhold til artikel  
5, 7, 8, 11, kan den ekskluderes fra Sammenslutningen ved en af de  
øvrige medlemmer af Forsamlingen truffet enstemmig beslutning.
12.2 Formanden for Forsamlingen underretter skriftligt gennem generalsekre­
tæren den pågældende om beslutningen.
Medmindre der er aftalt andet, far eksklusionen virkning dagen efter,  
at Parten har modtaget skrivelsen herom.
ARTIKEL 13 - Ændringer af eller tilføjelser til Aftalen
Bestemmelserne i  Aftalen kan kun ændres eller suppleres ved en tillægs­
aftale, der behørigt underskrives af alle Parterne i  Aftalen.
ARTIKEL H  - Bilag
Følgende dokumenter er bilag og udgør en integrerende del af denne  
Aftale:
Bilag 1: Tekniske bestemmelser for Systemet
Bilag 2: Standardkontrakt med en definition af betingelserne for adgang  
til Systemets databanker.
Udfærdiget i  Ispra  
i  10 originaler pi engelsk
FOR KOMMISSIONEN
George R. BISHOP
direktør for anlægget i  Ispra
FOR VEREINIGDE ENERGIEBEDRIJVEN VAN HET SCHELDELAND (EBES)

-  8 -
FOR INSTITUTE OF RADIATION PROTECTION (IRP)
FOR COMMISSARIAT A L'ENERGIE ATOMIQUE (CEA)
FOR ELECTRICITE DE FRANCE (EDF)
FOR TECHNISCHE VEREINIGUNG DER GROSSKRAFTWERKSBETREIBER
FOR ENTE NAZIONALE PER L'ENERGIA ELETTRICA (ENEL)

- 9 -
FOR GEMEENSCHAPPELIJKE KERNENERGIECENTRALE NEDERLAND CGKN)
FOR SWEDISH NUCLEAR POWER INSPECTORATE (SKI)
FOR NUCLEAR REGULATORY COMMISSION (NRC)

ANN E X  1
TO  A G REEM EN T N °
Technical provisions for the System
1 . Structure of the System
The System consists of independent National Data Banks of various national 
^  reporting systems, in which the original event data are stored.
In order to homogenize the reported data from these national reporting 
systems and to store the reported data directly coming from N.P.P.'s, also a 
Centralized Data Bank has been established.
2. Abnormal Event Reporting
2.1 Reporting Requirements.
The Members of the Association w ho shall supply data (Data Supplier) 
shall contribute to the System by means of :
- either the entire data file of their national reporting system, without 
reformatting and according to their reporting criteria;
- or data sets of pre-selected abnormal events from their national 
reporting systems, according to the "AORS" reporting criteria, as 
defined in point 2.4 below;
- or event data directly provided by the nuclear power plant in the form 
of their ow n event reports or directly on the "AORS" reporting format 
as in point 2.5 below.
2.2 Classification of information.
The data Suppliers are free to classify their events for a restricted users 
access.
These classified events will be secured in special Data Files by the use of 
keys. They will be accessable only to authorized Users as in point 3  below.
2.3 Updating
The data Suppliers shall update their data files in the System at least 
every six months.
2.4 Reporting Criteria
The abnormal events to be stored in the Centralized Data Bank are 
reported according to criteria as defined in Appendix no. 1  to this Annex.
These criteria can also be used for reporting by those national systems 
which do not contribute to the System by means of their entire data file.
Applying these criteria, an "average" reporting rate of 20 abnormal events 
per reactor per year is  expected.
-  2 -

-  2 -
2.5 Content and Format
The System collects the abnormal events from all types of operating 
nuclear power plants and experimental nuclear reactors.
The information about the abnormal events to be stored in the 
Centralized Data Bank is specified in a reporting format as illustrated in 
Appendix no. 2  to this Annex.
2.6 Reporting Procedures
For each National Data Bank an informatie system and interrogation 
procedure has been set up for the storage and retrieval of its ow n event 
data content.
The input data for the Centralized Data Bank coming from the said 
national data banks and the event data directly provided by the N.P.P.'s 
are homogenized according to the following procedure :
- selection of abnormal events from the national data files according to 
the "AORS" reporting criteria (see point 2.4) above;
- transformation of the selected "abnormal events" reports into the 
"AORS" reporting format (see point 2.5 above), either on a voluntary 
basis directly by the data Supplier or otherwise by care of the General 
Secretary of the Association;
- transcoding and storage of the "abnormal events" data by means of the 
"AORS" computer format in the Centralized Data Base;
- verification of the selected and stored data, if requested, by the data 
Supplier concerned.
3. Users category
The Assembly shall decide on the "Users" category.
There are the following two categories of Users :
Category "A "
Users belonging to this category shall have access to both unclassified and 
classified information in the System.
Category "B "
Users belonging to this category shall have access only to unclassified 
information in the System. They may, however, ask authorization for access to 
the classified information in accordance with the provisions of the Standard 
Contract (Annex no. 2) to this Agreement.

APPENDIX N° 1  TO  A NN EX  N° 1
T O  A GREEM ENT N °
Reporting Criteria
For reasons of coordination of the System with the Incident Reporting System (1R S ) 
< jf  the NEA, the reporting criteria for the 1 R S  have also been taken as a basis for 
the selecting and reporting criteria of the "AORS" Centralized Data Bank.
The difference between the 1 R S  and the A O RS finds expression in the extent of 
reporting: in the case of the 1 R S  only "significant" events will be reported with an 
average rate of 1  incident per reactor/year, whilst the AORS aims at a much more 
extensive reporting (about 20 events per reactor/year).
The "AORS" reporting criteria are defined, and illustrated with examples, as 
follows:1
l
1. Release of, or Exposure to, Radioactive Material 
Examples include :
an event that results in release of radioactive material to the 
environment;
' - an event that results in a member of the public receiving a radiation dose;
an event that results in facility personnel receiving a radiation dose.
2. Degradation of Safety-related Systems
2.1 Fuel cladding failure.
Examples include :
- fuel cladding failures requiring plant shutdown;
- cladding failures in spent fuel in the storage pond.
2.2 Degradation of the primary coolant boundary, main steam or feedwater 
line.
Examples include :
- through-wall failures of the piping or the components of the primary 
coolant circuit;
- welding defects or material defects in the primary coolant circuit;
- rapid temperature or pressure transient exceeding the authorized 
limits;
- loss of relief and/or safety valve functions during tests or operation.
-  2 -

-  2 -
2.3 Loss of containment function or integrity.
Examples include :
- containment leakage rates exceeding the authorized limits;
- loss of containment isolation valve functions during tests or operation;
- loss of main steam isolation valve functions during tests or operation;
- loss of containment cooling capability.
. 2.4 Degradation of systems required to control criticality.
\ Examples include :
- failures of the Control Rod System;
- accidental criticality,
- failures of the Boron Injection system
2.5 Degradation of systems required to control the system pressure or 
temperature.
Examples include : ^
- failures of the Emergency Core Cooling Systems such as the High/Low 
Pressure Core Injection System and the Core Spray System;
- loss of core cooling ability including failures of 'the Residual Heat 
Removal System;
- loss of Auxiliary Feedwater System.
2.6 Loss of essential support system.
Examples iriclude :
- loss of AC/DC power;
- failures of the Emergency Generator System;
- loss of service water, air, gas, etc.
3. Deficiencies in Design, Construction, Operation or Evaluation with regard to  
Safety
Examples include :
deficiencies in design or construction which, if incorrected, could result in 
the loss of a required safety function;
personnel errors or procedural deficiencies which result in loss of plant 
capability to perform essential safety functions;
discovery of a major condition not specifically considered in the 
authorized limits or previously analysed.
4. Generic Problems of Safety Interest 
Examples include :
series of events where individual events are not of significant importance; 
recurring events;
- events with implications for similar facilities.

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5. Consequential Actions
Consequential actions resulting from reported events taken by the competent 
safety authority on licensing, design or operation.
6. Events of Potential Safety Significance
Events which have no direct consequences but may be considered as 
approaching "near-misses".
7. Effects of U nusual External Events Either of M an-made or Natural O rigin  
Exam ples include :
an earthquake exceeding the safe shutdown earthquake;  
a flood exceeding the safe shutdown flood;  
an  aircraft crash on a nuclear facility.
Ii8. Events which attract Public Intereste
9. Others
(to be discussed)

Appendix no. 2 to Annex no. 1  
to Agreement no.
A.O. rt.S. Abnormal Event Reporting Format E.R.D.S.
A.E. Reference Number National Reporting Ident. Code
Date of event A.O.R.S. Category N.R.S. Category Total number  
.of occurrences
Ref. code C.E.D.B. Ref. code O.U.S.R. Ref. code I.R.S.
TITLE: -----L .
IN
ITIATING EVENT:
Init. -Ev. Class
FACILITY STATUS (at the moment of event)
□  Zero power /  Hot stand by
□  Starting - up
□  Reduced power
□  Full power
O  Cold shut · down□  Hot shut - down
□  Shutting - down
□  Refuelling /  Revision
□  Raising power  
C D  Reducing power□  Routine test
□  Special test
□  Under construction  
C D  Unidentified
□  Others
Power level in MWel
EFFECT ON OPERATION (after event)
□  No significant effect  
C D  Delayed coupling  
C D  Plant outage  
C D  Power reduction
Power level in MWelO  Reactor trip
□  Turbine trip
□  Hot shut - down
□  Cold shut - down□  Loss of heat sink
□  Loss of F.W. to S.G.
□  Unidentified
□  Others
A C TIVITY RELEASE □  No release
Personnel
□  Within authorized limits
□  Exceeding authorized limitsEnvironment
C D  Within authorized limits  
C D  Exceeding authorized limits
SIGNIFICANCE DISCUSSION

A .E . Reference Num ber
Event and Sequence description (with detailed information about activity release, plant parameters variation, common  
cause, human error, initiating event, etc)

A .E . Reference Num ber Occ. number
OCCURRENCE TITLE:
SYSTEMS INVOLVED DURING THE COURSE OF THE OCCURRENCE
FAILED SYSTEM OR EQUIPMENT
FAILED COMPONENT OR PART
EFFECT ON FAILED SYSTEM/COMPONENT
□  No significant effect
□  Loss of component function
□  Degraded component operation
□  Induced failure of another component
□  Unavailability of another system/component
CAUSE OF FAILURE
D  Personnel  
O  Mechanical
□  Electrical/Instrument
□  Environmental
□  Hydraulic
D Previous failure
□  Common cause
□  Unknown
□  Others□  Loss of system function
□  Degraded system operation
□  Loss of one redundancy
C D  Loss of more than one redundancy  
C D  Unidentified
□  Others
DETAILED INFORMATION:
WAY OF DISCOVERY
□  Audio/Visual alarm. Monitoring  
D  Rout, surveillance. Observation
□  Testing
C D  Review of procedure□  Calling system into operation
□  Inspection
□  M aintenance
C D  External source□  Repair
□  Unidentified
□  Others
ACTION TAKEN
C D  No action taken
□  Component/part replacement
□  Component/part repair
□  Adjustment/RecalibrationCD New procedure  
□  Training
CD Redcsign/Modification  
CD Control of similar equipment□  Temporary repair/by pass
□  Unidentified
□  Others
sheet 3

ANNEX N° 2  TO  A G REEM EN T N°
STA N D A RD  CONTRACT
DEFINING THE CO ND ITION S OF A CCESS TO  TH E 
D A TA  BA N K S O F TH E A BN O RM A L OCCURRENCES REPORTING SY STE M  (APRS)
B ET W EE N
EUROPEAN A TO M IC ENERGY COM M UNITY
A N D
N£
The European Atomic Energy Community {EURATOM ), hereinafter referred to as 
"the Community", represented by the Commission of the European Communities, 
hereinafter referred to as "the Commission", represented for the purpose of signing 
this contract by M r. George R. BISHOP, Director of the Ispra Establishment of the 
Joint Research Centre,
on the one part,
---------------------------------- - —  , hereinafter referred
to
 as "the Contractor", represented for the purpose of signing this contract by M r.
on the other part,
H A V E  AGREED A S  FOLLO W S
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-  2 -
CONTRACT N°
A R T IC L E  1  - Subject
The Commission shall, on the conditions set out hereinafter, allow the 
Contractor to access the Data Banks of the Abnormal Occurrences Reporting 
System (AORS) hereinafter called "the System", installed on the computer of 
the Computer Centre situated in the Ispra Establishment of its Joint 
Research Centre.
The access will be made by means of the Community-wide telecommunications  
infrastructure constituted by the interconnected national packet switched  
data networks. In exceptional cases, the Commission may allow the  
Contractor to access the Data Banks on JRC Ispra Site by means of its  
own installations.
The authorized data banks, the User Category, the financial conditions 
and the methods of access are described in the Annexes I, II and III  
of this contract.
A R T IC L E  2 - Duration
2.1 The present contract shall enter into force on and
shall terminate on __________ *______________ .
2.
2 The present contract is automatically renewed at the end of the above period 
for a period of 12 months unless terminated by registered letter by either 
Party 3 months before the expiry date. The date stamp on the envelope will 
be taken as the date of the letter.
2.3 The Commission has the right to terminate this contract at any time in case 
of non compliance by the Contractor with any of the provisions of this 
contract.
ARTICLE 3 - Prices and condit ions of paymentt
3.1 The authorization given in Article 1  is conditional on payment of the fees 
described in Annex II where applicable.
3.2 The tariffs given in Annex II are expressed in ECU's. Conversion of ECU's 
into national currencies will be carried out by the Contractor's bank at the 
time of payment.
3.3 The Commission reserves the right to modify, at any time, at three months 
notice, the tariffs applied in context of this contract in relation to the 
increase in real costs.
In this case, the Contractor has the right to terminate the contract at the 
end of the notice period on condition that he has notified the Commission of 
his intentions one month before the date on which the new tariffs come into effect.
3.4 Any taxes payable with regard to the services provided under this contract 
are the responsibility, of the Contractor.
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- 3  -
CONTRACT N°
3.5 Amounts due to the Commission as a result of this contract shall be paid  
within 30 days of the invoice date. T he Commission reserves the right to  
charge interest (at the rate of 1 %  per m onth) on late payments.
3.6 Independently of the interests foreseen in Article 3.5 and independently of  
the consequences of the law applicale to the present contract, the Commis­
sion reserves the right to terminate the contract without further notice 30  
days after the date of a rem inder that payment of an invoice is three months  
overdue.
»3.7 Payments shall be m ade into the Commission's account (no. 5500) at Banca  
Nazionale del Lavoro, Varese, Ispra branch (Sportello) m entioning "C C R  
Ispra", and the num ber of this contract.
ARTICLE 4 -  Contractor's responsabilities
The equipment necessary to enable the Contractor to have access to the  
telecommunications infrastructure referred to in Article 1 as well as  
the authorization/ formalities and all related expenses are the sole  
responsibility of the Contractor.
T he validity of this contract cannot be challenged if access to data banks is  
prevented for reasons outside the control of the Commission.
A R T IC L E  5 - Property
T he data provided by a data Supplier into the System are and remain the  
property of that Supplier.
ARTICLE 6 -  Use o f information
6.1 The Contractor hereby agrees that neither the Commission, nor any of the  
data Suppliers, shall be liable for
a) the quality of the information contained in the data banks accessed under  
this contract,
b) the fitness of such information for any purpose whatsoever,
c) the use the Contractor may wish to make of such information,
d) any inconvenience, damage (including consequential or incidental damage)  
or loss of profit which the Contractor m ay suffer following use of such  
information,
e) any claim or dem and of any nature or kind whether asserted against the  
Commission or against the Contractor by any T hird Party arising out of  
use of such information,
f) temporary interruptions in access due to breakdown of the Commission's  
computer installations.
6.2 The Contractor agrees to indemnify and hold the Commission and the data  
Supplier harmless from  any claims of T hird Parties arising out of Contractor's  
use of the information supplied hereunder.
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-  l i  -
CONTRACT N °
A R T IC L JE  7  - Dissemination of information
7.1 In case of dissemination of information based entirely on partially on 
information contained in the data banks accessed under this contract, the 
Contractor agrees :
a) to mention the origin of the data,
b) not to publish and not to commercialise any information extracted
' without the prior approval of the Commission. The Commission shall, in
addition, transmit each request to the General Secretary of the Abnormal 
Gccurrences Reporting System Association, w ho shall ask the 
authorization from the data Supplier concerned. The request for approval 
shall be addressed as in Article 9.2 of this contract,
c) not to give any Third Party access to the data banks and to the 
information extracted,
d) to restrict access to the data banks and to the information extracted to 
those persons within his organization who need such access for the 
purpose of this contract,
e) to make sure that his personnel observe the above provisions.
7.2 In case of non-compliance by the Contractor with the provisions of Article
7.1 hereof, the Commission is, without prejudice to its other rights under the 
contract and/or the applicable law, entitled to terminate this contract with 
immediate effect.
7.3 If due to the non-compliance of the Contractor with the provisions of Article
7.1 hereof, loss or damage is caused to a Third Party, (e.g. any data Supplier), 
the Contractor shall be exclusively liable and responsible for making compen­
sation therefor.
The Contractor shall hold harmless and indemnify the Community in respect 
of any action on account of such loss or damage which may be brought 
against the Commission.
A R T IC L JE  8  - Authorized Data Banks and User Category
8.1 The Data Banks authorized for access by the Contractor are specified in 
Annex no. 1  of this contract.
8.2 The Contractor's User Category is also specified in Annex no. 1  of this 
contract.
a) Category "A " Users shall have access to both classified and unclassified 
information in the System;
b) Category "B " Users shall have access only to unclassified information in 
the System.
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- 5  -
CONTRACT N °
8.3 In exceptional cases, a Category "B " User may ask for certain classified
information, in accordance with the following procedure :
a) a Category "B " User shall, each time he wishes to obtain a certain 
classified information, write a specific request describing the information 
required and the use he intends to make of this information;
b) the requests shall be addressed as in Article 10.2;
c) the Commission is, concerning each request, free to comply with it or not;
d) the Commission shall, in addition, transmit each request to the General 
Secretary of the Abnormal Occurrences Reporting System Association, 
w ho shall ask the authorization from the data Supplier concerned;
e) the present contract represents therefor neither a general obligation on 
the Commission to transmit any classified information, nor an 
authorization concerning any specific classified information;
f) in case the authorizations mentioned in Articles 8.3 c) and 8.3 d) are
given, the Commission shall transmit the information required to the 
Contractor; \
g) each transmission of information shall be governed by the provisions of 
this contract, in particular by the provisions of Articles 5, 6  and 7.
ARTICLE 9 - Subcontracts
The Contractor may not without the prior and express consent of the
Commission transfer or assign all or any part of the rights and obligations
deriving from the contract.
ARTICLE 10 - Administrative provisions
A ll correspondence concerning the performance of this contract shall be 
addressed as follows : *
10.1 For administrative questions
Commissione delle Comunità Europee 
Centro Comune di Ricerca 
Servizio Contratti 
Centro Euratom di 
I  - 21020 ISPRA (Varese) Italy
10.2 For technical questions
Commissione delle Comunità Europee 
Centro Comune di Ricerca 
Centro Euratom di 
I  - 21020 ISPRA (Varese) Italy
all'attenzione del Signor J. PIRE (for use of computer) 
all'attenzione del Signor J. A M ESZ (for content of Data Banks)
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-  6 -
CONTRACT N °
ARTICLE 11 - Jurisdiction - Law applicable
11.1 W here a dispute arises between the Contracting Parties concerning the 
contract and they are unable to reach a settlement themselves, the Court of 
Justice of the European Communities shall have sole jurisdiction.
11.2 This contract shall be governed by ________________________ law.
AR
TICLE 12 - Amendments or additions to the contract
The provisions of the contract and of the annexes thereto may not be 
amended or added to except by supplementary agreement signed by a duly 
authorized representative of, and on behalf of, each of the Contracting Parties.
ARTICLE 13 - AnnexesIlThe following is appended to and shall form integral part of this contract : 
Annex I : Authorized Data Banks and User Category
Annex II : Financial conditions
Annex III : Technical description of the methods of accessing authorized
.  data banks
Done in Ispra,
in two originals in the English 
language
For the Contractor Por the Commission
______________, the
George R. B ISH O P 
Director of the Ispra Establishment
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- 7  -
C O N T R A C T  N°
T he Contractor approves explicity the following clauses :
- Article 6 :  Use of inform ation
- Article 7 :  Dissemination
Article 11 :  Jurisdiction - L aw  applicable·
For the Contractor

A N N EX  I  T O  CONTRACT N °
Annex I - Authorized Data Banks and User Category
1 .1  The authorization for access granted under this contract covers the following 
(tick appropriate box) :
DATA BA N K S
1  The French Data Bank of CEA
I  I  The French Data Bank of EDF
I  1  The Italian Data Bank of CAORSO
I
i
i 1  The Swedish Data Bank of S K I
1  i  The U SA  Data Bank of NRC
I  I  The Centralized Data Bank
USER CATEGORY
1  1  a :
I  I  B
1 .2  Access to the data will be made using the following user identifier (Authoriza­
tion number) :

A N N EX  I I  TO  CONTRACT N °
Annex II - Financial conditions
Access to the Data Banks is allowed after payment of the following fees :
1 1 .1  Initial Subscritpion : 100 ECU 
\This charge is made only once for a given contract. Nevertheless it will be 
repeated if a contract which has been cancelled by the Commission as a 
result of non payment by the Contractor or by the Contractor himself is 
made again.
1 1 .2  Subscription to a specific data bank : 20 ECU
The charges mentioned in this clause are made only once for any given Data 
Bank. Nevertheless it will be repeated if a contract which has been cancelled 
by the Commission as a result of non payment by the Contractor or by the 
Contractor himself is made again.
1 1 .3  Annual subscription
National Data Banks (1^5) each 500 ECU
Centralized Data Bank (6) 1000 ECU
This charge is made every six months or every year as appropriate. The sum 
is payable to the Commission irrespective of the use made of the 
authorisation to access JRC Ispra Data Banks.
1 1 .4 Variable costs which depend on the use made of the Data Banks of the Ar JRS. 
The charges for every thousand characters sent to the User in response are 
3.00 ECU.

A NN EX  III TO  CONTRACT N°
Annex III - Technical description of the methods of accessing authorized Data Banks
\
1 1 1 .1 Access authorisation
Access to the Data Banks of the AORS under this contract is regulated by 
the authorisation number mentioned in Annex I (Paragraph 1 .2  User 
identifier).
Access is allowed, therefore, by any N E T W O R K  U S E R  ID E N T IF IE R  (NUI) 
and by any type of start-stop terminal, in conformity with CCITT 
Recommendations X 3, X28, X 25. However, only one user session at a 
time is allowed for any given authorisation number. The access 
authorisation and the related authorisation number permits access 
only to the Data Banks specified in A nnex I of the present contract.
1 1 1 .1.1 Password
. Misuse of the authorisation number is prevented by the use of a password
chosen, known and changed exclusively by the Contractor. The password 
may be changed once during each user session (Par. III.2.2 vi). The 
password is made up of six characters. The initial password consists of six 
blanks (space) characters; the Contractor is strongly advised to change his 
password on receipt of this contract to avoid misure of his authorisation number.
The Commission assumes no responsibility for the use made by un­
authorized persons of an authorisation number whose password is 
composed of six (space) characters.
III.2 Connection procedure
The procedure for connection to and use of a service on a host 
computer connected to a public packet switched data network consists 
of three parts :
a) connecion to the host computer
b) verification of the user identifier by the host computer
c) protocol for the use of the required service.
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-  2 -
III.2.1 Connection to the host computer
The connection protocol should be in conformity with CCITT  
Recommendations X28. Detailed information shall be provided  
to the user, at subscription time, by the national PTT Admi­
nistration. The address of the required service YYYYY shall  
be entered into the user data field at virtual call set-up  
time.
Note 1  : For "AORS" Data Banks, YYYYV =  IS M V S
II1.2.2 Verification of the user identifier
Wait for the first message from the host :
i) - if the host is able to accept access to the Service described by
YYYYY (Par. III.2.1), you w ill be invited to give your
authorisation number :
"G IV E YOUR AUTHORISATION"
- if the host is unable to accept access to the service YYYYY, it 
will reply :
"NOT PORT FREE" 
and terminate the session (see Note 2)
ii) - Enter your authorisation number XXXX(CR)
iii) - If the authorisation number exists and is valid for access to
YYYYY, the host will reply :
"G IV E YOUR PASSW ORD"
- In all other cases, it will reply :
"ACCESS NOT AUTHORISED" 
and will terminate the session (see Note 2 )
-  3 -

- 3  -
iv) - Enter your password: pppppp(CR)
v) - If the password is correct, the host will reply:
" Y O U  M A Y  C H A N G E Y O U R  P A SSW O R D "
- If the password is incorrect, the host will reply:
"IN V ALID"
and terminate the session (see Note 2)
vi) - if you do not want to change your password, enter (CR)
- if you do want to change your password, enter the new value
4  followed by (CR). Only the first six characters are taken into
account.
vii) - the host will reply :
"NOT CHANGED" 
or
"CHANGED"
as appropriate.
viii) - the host will then reply :
"CONNECTING - PLEASE W A IT"
the operations necessary for connection to the data base are in 
progress
•  - if the data base is accessible, the host computer will then reply :
"CONNECTED"
- if the data base is not accessible, the host computer will reply :
"M OM ENTARILY NOT A V A ILA BLE"
and terminate the se^ion (see Note 2).
Note 2 :  When the session is terminated, the user will receive, in  
addition, the message CLRPAD.
1 1 1 .3  User protocol for the required service '
The command language of each Data Bank is described in a manual which 
will be supplied at the same time at the present contract.
1 1 1 .4  The timetable for accessing the Data Banks is the following (Italian time):
Monday : from 14.00 to 20.00
Tuesday : from 09.00 to 12.30 and from 14.00 to 20.00
Wednesday : from 09.00 to 12.30 and from 14.00 to 20.00
Thursday : from 09.00 to 12.30 and from 14.00 to 20.00
Friday : from 09.00 to 12.30 and from 14.00 to 20.00