REGDOC-2.13.1, Safeguards and Nuclear Material Accountancy
This regulatory document is part of the Canadian Nuclear Safety Commission’s (CNSC) Safeguards and non-proliferation series of regulatory documents. The full list of regulatory document series is included at the end of this document and can also be found on the CNSC’s website.
Regulatory document REGDOC-2.13.1, Safeguards and Nuclear Material Accountancy, sets out requirements and guidance for safeguards programs for applicants and licensees who possess nuclear material, operate a uranium and/or thorium mine, carry out specified types of nuclear fuel-cycle related research and development work, and/or carry out specified types of nuclear-related manufacturing activities. The requirements and guidance in this document are essential to Canadian compliance with the safeguards agreements entered into with the International Atomic Energy Agency, and are consistent with modern national and international practices.
This document supersedes RD-336, Accounting and Reporting of Nuclear Material, and GD-336, Guidance for Accounting and Reporting of Nuclear Material, which were both published in June, 2010.
REGDOC-2.13.1 is intended to form part of the licensing basis for a regulated facility or activity within the scope of the document. It is intended for inclusion in licences as either part of the conditions and safety and control measures in a licence, or as part of the safety and control measures to be described in a licence application and the documents needed to support that application.
For new applicants: This document will be used to assess new licence applications.
Guidance contained in this document exists to inform the applicant, to elaborate further on requirements or to provide direction to licensees and applicants on how to meet requirements. It also provides more information about how CNSC staff evaluate specific problems or data during their review of licence applications. Licensees are expected to review and consider guidance; should they choose not to follow it, they should explain how their chosen alternate approach meets regulatory requirements.
For existing licensees: The requirements contained in this document do not apply unless they have been included, in whole or in part, in the licence or licensing basis.
A graded approach, commensurate with risk, may be defined and used when applying the requirements and guidance contained in this regulatory document. The use of a graded approach is not a relaxation of requirements. With a graded approach, the application of requirements is commensurate with the risks and particular characteristics of the facility or activity.
An applicant or licensee may put forward a case to demonstrate that the intent of a requirement is addressed by other means and demonstrated with supportable evidence.
Important note: Where referenced in a licence either directly or indirectly (such as through licensee-referenced documents), this document is part of the licensing basis for a regulated facility or activity.
The licensing basis sets the boundary conditions for acceptable performance at a regulated facility or activity, and establishes the basis for the CNSC’s compliance program for that regulated facility or activity.
Where this document is part of the licensing basis, the word "shall" is used to express a requirement to be satisfied by the licensee or licence applicant. "Should" is used to express guidance or that which is advised. "May" is used to express an option or that which is advised or permissible within the limits of this regulatory document. "Can" is used to express possibility or capability.
Nothing contained in this document is to be construed as relieving any licensee from any other pertinent requirements. It is the licensee’s responsibility to identify and comply with all applicable regulations and licence conditions.
Table of Contents
- 1. Introduction
- 2. Nuclear Material Classification
- 3. Categorization of Licensees
- 4. Safeguards Program
- 5. Safeguards Equipment and Seals
- 6. International Atomic Energy Agency Access
- 7. Nuclear Material Accountancy
- 8. Provision of Information
- 8.1 Nuclear material accountancy reports
- 8.2 Design information
- 8.3 Operational information
- 8.4 Information required by the Additional Protocol
- 9. Retention of Records
- Appendix A: List of Declarable Nuclear-Related Manufacturing Activities
- Appendix B: List of Nuclear Fuel Cycle-Related Research and Development Activities
- Appendix C: Guidance on Materials Not Subject to Safeguards
- Appendix D: Nuclear Material Accountancy Reference Tables
The Treaty on the Non-Proliferation of Nuclear Weapons (NPT)  is the cornerstone of the global nuclear non-proliferation regime. States that are party to the NPT have commitments and obligations in the areas of non-proliferation, disarmament, and the peaceful use of nuclear material and technology.
To fulfil commitments made under the NPT, Canada has concluded binding safeguards agreements with the International Atomic Energy Agency (IAEA), which provide for the application of IAEA safeguards in Canada. Under the safeguards agreements, Canada has an obligation to report to the IAEA on all nuclear material and on certain types of nuclear research and manufacturing in Canada, and to accept IAEA inspections of those areas. In turn, the IAEA has an obligation to ensure that safeguards are applied to all nuclear material in Canada, for the purpose of verifying that such material is not diverted to non-peaceful uses.
Under the Nuclear Safety and Control Act (NSCA), the Canadian Nuclear Safety Commission (CNSC) has the mandate to achieve Canadian conformity with these agreements. To do so, the CNSC imposes obligations on its licensees for reporting required by the IAEA and for the access necessary for IAEA verification of this reporting.
REGDOC-2.13.1, Safeguards and Nuclear Material Accountancy, sets out CNSC requirements and guidance for the establishment and maintenance of a safeguards program.
This document specifies the information, access and support that licensees shall provide to the CNSC and the IAEA to facilitate Canadian compliance with Canada’s safeguards agreements with the IAEA, and with licensee obligations established in the General Nuclear Safety and Control Regulations (GNSCR).
The term "safeguards" refers to an international system of monitoring and verifying nuclear material and specified nuclear activities, administered in Canada by the CNSC and verified by the IAEA, to deter the diversion of nuclear material from legitimate peaceful activities. The NPT requires that IAEA safeguards apply to nuclear material, in any quantity, wherever it is present in Canada.
REGDOC-2.13.1, Safeguards and Nuclear Material Accountancy, provides safeguards requirements and guidance for licensees who:
- a) possess nuclear material, which is defined as: plutonium-239, uranium-233, uranium enriched in the isotopes of 235 or 233, uranium containing the mixture of isotopes occurring in nature, uranium depleted in the isotope 235, and thorium, and/or
- b) operate a uranium and/or thorium mine, and/or
- c) carry out nuclear-related manufacturing activities as specified in Appendix A: List of Declarable Nuclear-Related Manufacturing Activities, and/or
- d) engage in nuclear fuel cycle-related research and development activities as defined in Appendix B: List of Nuclear Fuel Cycle-Related Research and Development Activities
The following materials are not subject to this document’s requirements:
- a) uranium or thorium which occurs naturally in rock or soil, including uranium and thorium ore
- b) nuclear material in transit through Canada
- c) uranium, plutonium-239 and thorium that is in a non-nuclear end use form, from which the CNSC has determined that the uranium, plutonium-239 and thorium is practicably irrecoverable
Additional guidance on materials not subject to safeguards is provided in Appendix C: Guidance on Materials Not Subject to Safeguards.
1.3. Relevant legislation and obligations
1.3.1 Legislation and regulations
The following provisions of the NSCA and the regulations made under it are relevant to this document:
- Subparagraph 9(a)(iii) of the NSCA establishes that one of the objects of the Commission is to "achieve conformity with measures of control and international obligations to which Canada has agreed".
- Paragraph 24(4)(b) of the NSCA states that "[n]o licence shall be issued, renewed, amended or replaced – and no authorization to transfer one given – unless, in the opinion of the Commission, the applicant or, in the case of an application for an authorization to transfer the licence, the transferee...will, in carrying on that activity, make adequate provision for the protection of the environment, the health and safety of persons and the maintenance of national security and measures required to implement international obligations to which Canada has agreed".
- Paragraph 27(b) of the NSCA states that "[e]very licensee and every prescribed person shall (b) make the prescribed reports and file them in the prescribed manner".
- Paragraph 12(1)(i) of the GNSCR states that "[e]very licensee shall...take all necessary measures to facilitate Canada’s compliance with any applicable safeguards agreement".
- Section 30 of the GNSCR identifies situations in which safeguards reports shall be provided by licensees to the Commission. Regulatory document series 3.1, Reporting Requirements, sets out the CNSC’s requirements for event and compliance monitoring reporting by licensees.
1.3.2 International Atomic Energy Agency safeguards agreements
The IAEA implements safeguards through legally binding treaty-level agreements with states and regional authorities. The Agreement Between the Government of Canada and the International Atomic Energy Agency for the Application of Safeguards in Connection with the Treaty on the Non-Proliferation of Nuclear Weapons (Safeguards Agreement)  came into force on February 21, 1972 and the Protocol Additional to the Agreement Between Canada and the International Atomic Energy Agency for the Application of Safeguards in Connection with the Treaty on the Non-Proliferation of Nuclear Weapons (Additional Protocol)  came into force on September 8, 2000.
The Safeguards Agreement  lays out the safeguards system that Canada shall adhere to, including what materials are subject to safeguards, and what information shall be reported to the IAEA. As per the Safeguards Agreement, the objective of IAEA safeguards is "the timely detection of diversion of significant quantities of nuclear material from peaceful nuclear activities to the manufacture of nuclear weapons or of other nuclear explosive devices or for purposes unknown, and deterrence of such diversion by the risk of early detection."
The Additional Protocol  contains further requirements for the provision of information and access, including the obligation to allow access to some locations on 24 hours’ notice, and the obligation to provide information on and access to certain nuclear manufacturers and researchers, neither of which need involve nuclear material. These tools allow the IAEA to have confidence that there is an absence of undeclared nuclear material and nuclear activities in Canada.
2. Nuclear Material Classification
The CNSC has defined two groups and two sub-groups of nuclear material for the purpose of the graded application of reporting and access requirements. It is possible for licensees to possess a combination of material groups; however, material from different groups shall be stored separately. For permissible inventory changes for each group, refer to Appendix D: Table D3.
2.1 Group 1 material
Group 1 material is uranium, plutonium-239, and thorium that are sufficiently pure to be used for fuel fabrication or for isotopic enrichment. This includes all materials in the nuclear fuel cycle past the point of ore concentrate, or anything created from such materials, including depleted uranium. Uranium ore concentrate that meets the purity specifications in table 1 of ASTM C753-04, Standard Specification for Nuclear-Grade, Sinterable Uranium Dioxide Powder  is considered to be Group 1 material. Once a given item or batch of nuclear material is considered to be Group 1 material, it remains so unless terminated from safeguards by agreement with the IAEA.
2.1.1 Group 1A material – Full-scope safeguards
Group 1A material is Group 1 material that is subject to full-scope safeguards – that is, open to routine verification by the IAEA and detailed nuclear material accountancy is required (see Appendix D: Table D1 for reporting frequencies, and section 6 for further information on IAEA access rights applicable to Group 1A material).
Group 1A material may only be stored at sites categorized as "facilities" or "locations outside facilities" for safeguards purposes (see section 3 for categorization of licensees).
Licensees can seek the termination of safeguards on Group 1A material by submitting a request to the CNSC using the "Request for termination" form available on the CNSC’s Safeguards and nuclear materials accountancy forms Web page. Termination requests will only be approved by the CNSC and IAEA if it is determined that the material has been consumed, or has been diluted in such a way that it is no longer usable for any nuclear activity, or has become practicably irrecoverable. Material which has been terminated from safeguards ceases to be subject to detailed nuclear material accountancy and IAEA access requirements.
2.1.2 Group 1B material – Exemption from safeguards
Group 1B material is Group 1 material that has been exempted from some reporting and verification obligations, with permission from both the IAEA and the CNSC. Refer to Appendix D: Table D1 for reporting frequencies, and section 6.3 for further information for IAEA access rights applicable to Group 1B material.
Under Article 36 of the Safeguards Agreement , nuclear material may be exempted from safeguards under the following conditions:
- a) the material is used in gram quantities or less as a sensing component in instruments, or
- b) the material is used in non-nuclear activities, or
- c) the material is plutonium with a plutonium-238 content exceeding 80 percent
Under Article 37 of the Safeguards Agreement , material not fitting the above criteria may still be exempted from safeguards if the quantity limits specified for Canada in Article 37 are not exceeded. The CNSC tracks the total quantity of material in Canada exempted under Article 37 to ensure that these limits are not exceeded.
Licensees can request that Group 1A material be exempted from safeguards or that Group 1B material be de-exempted from safeguards, by submitting a request to the CNSC using the "Request for exemption" and "Request for de-exemption" forms available on the CNSC’s Safeguards and nuclear materials accountancy forms Web page.
2.2 Group 2 material – Ore concentrates
Group 2 material is uranium and thorium that has not reached the stage in the nuclear fuel cycle where the composition and purity is suitable for fuel fabrication or isotopic enrichment. Group 2 material typically includes only uranium and thorium ore concentrates that do not meet the purity specifications in ASTM-C753 04 Standard Specification for Nuclear-Grade, Sinterable Uranium Dioxide Powder .
This type of material is not subject to routine verification by the IAEA, but is still subject to some access and nuclear material accountancy requirements (see Appendix D: Table D1 for reporting frequencies, and section 6.3 for further information on IAEA access rights applicable to Group 2 material).
3. Categorization of Licensees
For the purposes of safeguards, licensees are categorized as "facilities", "locations outside facilities", or "other licensees" according to the criteria below.
Licensees who possess Group 1A material are referred to as facilities for safeguards purposes if they meet one of the following criteria:
- a) the licence includes a reactor and/or a critical facility, or, a nuclear material conversion, fabrication, reprocessing or isotope separation plant, or, a separate nuclear material storage installation, or
- b) the licence includes a location where Group 1A material in amounts greater than 1 effective kilogram is customarily used
3.2 Locations outside facilities
Licensees who possess Group 1A material but do not meet the above criteria are referred to as locations outside facilities for safeguards purposes.
3.3 Other licensees
Licensees who do not possess Group 1A material, and who:
- a) possess Group 1B or Group 2 material, and/or
- b) conduct nuclear fuel cycle-related research and development activities, and/or
- c) carry out specified nuclear-related manufacturing activities
are referred to as other licensees, and are subject to a reduced set of safeguards requirements.
4. Safeguards Program
Every licensee categorized as a facility, location outside facility or other licensee shall have a documented safeguards program that provides for the fulfillment of applicable safeguards requirements:
- Safeguards Equipment and Seals (section 5)
- IAEA Access (section 6)
- Nuclear Material Accountancy (section 7)
- Provision of Information (section 8)
- Retention of Records (section 9)
A licensee’s safeguards program should include the measures the licensee will take to ensure that the safeguards requirements for that licensee are discharged in a consistent, satisfactory manner. Every licensee who possesses nuclear material, or carries out nuclear fuel cycle-related research and development activities, or carries out specified nuclear-related manufacturing activities should designate a person responsible for the maintenance and fulfillment of that licensee’s safeguards program. The identity of this person should be disclosed to the CNSC.
5. Safeguards Equipment and Seals
Every licensee shall, at the CNSC’s request, install safeguards equipment at the licensed site or facilitate the IAEA’s installation of such equipment. Every licensee shall provide the services required for the operation of such equipment, in accordance with the specifications provided.
No licensee shall interfere with or interrupt the operation of safeguards equipment at the facility, or alter, deface or break a safeguards seal, except at the CNSC’s request. Every licensee shall implement measures to prevent damage to, or the theft, loss, tampering with, or sabotage of safeguards equipment, seals, or samples. Licensees shall communicate any such events to their own security staff, where such staff exist.
As per section 30 of the GNSCR, reports shall be provided by licensees to the Commission in the event of interference with or an interruption to the operation of safeguards equipment, or the alteration, defacement or breakage of a safeguards seal, among other events.
Requests to install safeguards equipment at the licensed site will be preceded by consultation with the licensee. As per Article 15 of the Safeguards Agreement , "...if the Government of Canada or persons under its jurisdiction incur extraordinary expenses as a result of a specific request by the Agency, the Agency shall reimburse such expenses provided that it has agreed in advance to do so.".
At licensee sites where safeguards seals and equipment are or are likely to be present, part of a licensee’s safeguards program should include familiarizing all relevant persons with the requirements surrounding IAEA seals and equipment. Safeguards seals and equipment are more commonly used at licensee sites categorized as facilities, and less commonly used at other types of licensee sites.
Licensees should contact the CNSC when it is not clear if there has been interference with or an interruption to the operation of safeguards equipment. For instance, most safeguards equipment can tolerate short-duration outages to power and/or data connectivity, so such instances may not constitute reportable events under section 30 of the GNSCR.
6. International Atomic Energy Agency Access
Every licensee shall provide access to IAEA inspectors in order to enable the IAEA to verify Canada’s declarations to the IAEA, as required by the Canada-IAEA safeguards agreements. The IAEA may require access to a given site for a variety of purposes, as described below.
At the CNSC’s request, licensees shall report to the CNSC on the outcomes of any IAEA activities that occur on their sites.
Licensees can contact the CNSC to verify the identity of IAEA inspectors requesting site access.
The IAEA has the right to carry out inspections at licensees categorized as facilities and locations outside facilities. During inspections, the IAEA has the right to verify all Group 1A material on the site and to verify relevant records and reports, including safeguards-relevant documentation which has not been submitted to the CNSC (such as source data).
During an inspection, the licensee shall provide a list of inventory items (LII) covering the material subject to inspection, and then facilitate IAEA verification of that inventory. Further information on the LII is provided in section 8.1.4. The requirement to provide an LII during a given type of inspection may be waived by mutual agreement between the licensee, the CNSC and the IAEA; for example, LIIs may not be required during some unannounced inspections.
IAEA inspection activities can include, among other activities:
- measurement of nuclear material
- taking of samples of nuclear material
- review of data from IAEA containment and surveillance equipment
- application and verification of IAEA seals
- examination of safeguards-relevant records and reports
For inspections where samples of nuclear material are taken, the licensee shall provide such reasonable assistance as is required to enable the shipment of those samples.
Depending on the size and complexity of the inventory to be verified, the frequency of IAEA inspections can vary, and can range in duration from hours to weeks. Notification of an IAEA inspection will typically be sent between 24 hours and a week in advance. The IAEA maintains the right to carry out unannounced inspections at licensees categorized as facilities with a content or annual throughput exceeding five effective kilograms of nuclear material. As a method of verifying licensee compliance with CNSC requirements, and of verifying IAEA compliance with the Canada-IAEA safeguards agreements, the CNSC will seek to participate in all IAEA inspections in Canada, where possible.
6.2 Design information verification
The IAEA has the right to carry out design information verification (DIV) visits at licensees categorized as facilities to verify the design information provided by those licensees (see section 8.2 for more information on design information requirements). During a DIV, licensees shall provide the IAEA with the latest design information submitted to the CNSC, and then facilitate IAEA verification of that information. The IAEA will provide one week’s notice for DIV visits. As a method of verifying licensee compliance with CNSC requirements, and of verifying IAEA compliance with the Canada-IAEA safeguards agreements, the CNSC will seek to participate in all IAEA DIVs in Canada, where possible.
6.3 Complementary access
Under the Additional Protocol , the IAEA has the right to request complementary access (CA) to any location in Canada with at least 24 hours’ notice, or 2 hours’ notice Footnote 1 if the IAEA is already present at a facility or location outside facility, on the same site, for an inspection or DIV.
Upon receipt of a request for CA, every licensee shall provide the IAEA and CNSC with access to any:
- location on any site declared as a facility or location outside facility
- decommissioned or closed down facility and/or location outside facility
- uranium or thorium mine, mill or concentration plant
- location possessing, importing or exporting more than 10 metric tonnes of uranium ore concentrate and/or more than 20 metric tonnes of thorium ore concentrate in a given calendar year
- location where materials exempted from safeguards under Article 37 of the Safeguards Agreement  are stored, or where materials exempted from safeguards under Article 36 of the Safeguards Agreement are stored, if those materials are not yet in their non-nuclear end use form
- location involved in the further processing of wastes containing plutonium, high enriched uranium or uranium-233 on which safeguards have been terminated
For locations subject to CA requests that are not listed above (for example, locations involved in nuclear fuel cycle-related research and development activities or specified nuclear-related manufacturing), upon receipt of a request for CA, every licensee shall make every reasonable effort to provide the IAEA and CNSC with access.
Access shall be provided within the timeframes specified in the notification of CA.
A CA will only take place during regular working hours. For CAs in remote locations, the IAEA typically provides more than 24 hours’ notice. Activities that the IAEA may perform during a CA include:
- visual observation
- collection of environmental samples
- utilization of radiation detection and measurement devices
- item counting of nuclear material Footnote 2
- application of seals and/or other tamper indicating devices
- discussions with persons who are or have been involved in work that is reportable under the safeguards agreements
- examination of records relevant to the goals of the CA
IAEA access during a CA can be managed in order to prevent the dissemination of proliferation-sensitive information, to meet safety or physical protection requirements, and to protect proprietary or commercially sensitive information. Any such need for managed access should be communicated to the CNSC via the licensee’s annual update under the Additional Protocol  (see section 8.4 for further details). This does not preclude the possibility of a need for managed access arising during the CA. As a method of verifying licensee compliance with CNSC requirements, and of verifying IAEA compliance with the Canada-IAEA safeguards agreements, the CNSC will seek to participate in all IAEA CAs in Canada, where possible.
So that licensees may prepare appropriately, the CNSC will notify all licensees on a given site whenever the IAEA will be present at that site for an inspection or DIV, with the exception of unannounced inspections.
6.4 Access to IAEA equipment
The IAEA has the right to access their installed equipment, including for maintenance and servicing. The licensee shall facilitate access to IAEA equipment, including the provision of ladders, scaffolding, lifting equipment, or training, as needed.
Licensees should inform the CNSC of training requirements necessary to access IAEA equipment through design information submissions (see section 8.2).
Note: The IAEA may request access to its equipment on short notice.
7. Nuclear Material Accountancy
Nuclear material accountancy is the program of nuclear material accounting and reporting implemented by licensees and the CNSC, to satisfy the requirements of the Safeguards Agreement .
Nuclear material accountancy covers licensee activities carried out to establish the quantities of nuclear material present within defined areas, and the changes in those quantities within a defined time period. This includes nuclear material measurement, record keeping, preparation and submission of accounting reports, and verification of accounting information. For licensees possessing Group 1A material, this further includes the establishment of material balance areas (MBAs), where flows and inventory of nuclear material can be determined, and key measurement points (KMPs) within those MBAs, where flows and inventories of nuclear material can be measured.
7.1 Measurement of nuclear material
All licensee safeguards programs shall include the maintenance and calibration of any instruments used to measure nuclear material for safeguards purposes. The documented results of any calibration activity or measurement of nuclear material are classified as source data and thus shall be available on request, including during IAEA inspections.
In general, instruments used to measure nuclear material should be calibrated at least once in the period between physical inventory takings (see section 7.3 below for further detail). The accuracy of licensee measurements should meet or exceed the standards set in the IAEA document STR 368, International Target Values 2010 for Measurement Uncertainties in Safeguarding Nuclear Materials , where applicable.
Rounding errors should be minimized (for example, when a sum of measurements is reported, rounding should only be performed for the final reported number). In addition, the number of significant digits should reflect the uncertainty in the overall measurement. Measurements should be provided with the same number of significant digits in all reports pertaining to the same item or batch.
7.2 Inventory tracking
All licensees possessing nuclear material shall be capable, at the CNSC’s request, of providing an up-to-date LII, covering all of the Group 1 material in their possession.
All items in inventory shall be uniquely identified, for instance with a stamped or engraved serial number, a label, or a tag, such that a CNSC or IAEA inspector can easily relate the licensee’s LII to the physical inventory.
7.3 Physical inventory taking
All licensees categorized as facilities or locations outside facilities shall carry out a physical inventory taking (PIT) each calendar year, and not more than 14 months after their previous PIT. The licensee’s PIT date shall be declared to the CNSC as part of the annual operational program (see section 8.3).
A licensee’s PIT shall:
- confirm the presence of all Group 1 material on the LII
- verify that an item’s unique identifier matches the information on the LII
- verify that there is no Group 1 material present which is not included on the LII
The CNSC and/or the IAEA may choose to verify the results of a licensee’s PIT. Should the IAEA choose to verify the results of a licensee’s PIT, their inspection is termed a physical inventory verification (PIV). Should the CNSC choose to do so, it is termed a physical inventory taking evaluation (PIT-E). The PIV and/or PIT-E may occur shortly after the PIT or coincide with it. A PIV will involve the verification of some or all Group 1A material onsite at the time of the PIT, while a PIT-E will involve the verification of some or all Group 1 material onsite at the time of the PIT. Licensees shall be prepared to support an IAEA PIV and/or a CNSC PIT-E following each PIT.
For licensees with large and complex inventories, the PIT should be scheduled to take place when nuclear material movements and inventory are at a minimum, and when equipment used to process nuclear material can be emptied and cleaned out to the extent reasonably possible. Nuclear material that is held up in equipment at the time of a PIT should be sampled and analyzed, where possible, to determine characteristics relevant to the determination of nuclear material mass. The nuclear material in items that have not changed in mass since the previous inventory taking, or since their creation or receipt, does not need to be remeasured as part of a PIT.
In the following cases, Group 1B material may be accounted for using source documents (for instance, commercial or shipping documents) that indicate the location of the material:
- Group 1B material that is difficult to access; for instance, items stored in sealed containers. Documentation should indicate the type and quantity of material in a given storage location, and the date at which it became inaccessible.
- Group 1B material that is under the ownership of the licensee but that has been transferred temporarily at the time of a PIT. Documentation should indicate the location of the material and the arrangements in place related to its return.
The CNSC may select a PIT date for the licensee based on availability of CNSC resources, and in consideration of licensee resources.
7.4 Inventory difference
All licensees who carry out a PIT shall calculate inventory difference (ID) as an outcome of that PIT, and report it to the CNSC. ID is also known as material unaccounted for (MUF). ID is calculated over a material balance period; that is, the interval between two inventory takings.
ID shall be calculated using the material balance equation provided below:
ID = BE – PE
BE = PB + X – Y
BE = the book ending inventory; that is, the sum of the physical beginning inventory and all inventory changes over the material balance period
PE = the physical ending inventory, as established by the current inventory taking
PB = the physical beginning inventory, as established by the previous inventory taking
X = the sum of all inventory increases over the material balance period
Y = the sum of all inventory decreases over the material balance period
ID shall be reported to the CNSC on the following reports:
- an inventory change document (ICD), if ID is non-zero (see section 8.1.2)
- the final general ledger of the material balance period (applicable only to licensees designated as facilities; see section 8.1.3)
- the reconciliation statement (see section 8.1.6)
The CNSC evaluates all instances of ID reported by licensees. On the basis of this evaluation, the CNSC may require follow-up actions for instances of a non-zero ID for nuclear material in bulk form. Licensees shall investigate any instances of a non-zero ID for nuclear material in item form, and shall communicate the results of the investigation to the CNSC and to their own security staff, where such staff exist. Reports on the results of such investigations shall be submitted within 30 days of the PIT, shall include the licensees’ conclusions as to the source of ID and any correcting measures, and shall be submitted via email to the CNSC safeguards mailbox (firstname.lastname@example.org).
7.5 Foreign obligations
Canada has negotiated nuclear cooperation agreements (NCAs) with nuclear trading partners worldwide. When nuclear material is imported into Canada pursuant to the terms and conditions of an NCA, it is generally subject to foreign obligations, including a requirement for Canada to track and report back on that nuclear material as long as it is in Canada.
The CNSC will inform the importer at the time an import licence is issued whether a foreign obligation will be attributed to the nuclear material. Where there has been no such notification by the CNSC, the nuclear material in question is considered unobligated while it remains in Canada.
All licensees shall track any foreign obligations associated with their nuclear material inventories and inventory changes. For further information see sections 8.1.2 and 8.1.7.
Once assigned, foreign obligations associated with an item shall be kept associated with that item, unless the integrity of the item is destroyed through processing. Note that nuclear material can be simultaneously obligated to multiple countries.
Foreign obligations on domestic transfers or internal inventory changes shall be assigned by the licensee based on the obligations in their inventory. Foreign obligations on nuclear material to be exported from Canada, if any, shall be declared to the CNSC by the licensee as part of the application process for a CNSC export licence. If unobligated nuclear material is to be exported from Canada for nuclear use, the CNSC will assign a Canadian obligation to that material at the time of export.
For more information on CNSC’s import and export control program, please see regulatory document REGDOC-2.13.2, Import and Export.
8. Provision of Information
Licensees shall have measures in place to prevent the compromise of systems used to generate, store and transmit safeguards-relevant information.
All information supplied to the CNSC shall be transmitted using appropriate information security measures. Communications up to and including a security level of Protected B can be transmitted via the CNSC’s Nuclear Materials Accountancy Reporting (NMAR) e-business system (see section 8.1.1), and encrypted email via the CNSC safeguards mailbox (email@example.com). Licensees shall make alternate arrangements with the CNSC when information to be submitted is Protected C or classified.
Licensees may refer to CSA standard N290.7-14, Cyber Security for Nuclear Power Plants and Small Reactor Facilities  for guidance on cyber security for safeguards systems.
For further guidance on security level classification, licensees may refer to the levels of security published by the Government of Canada. For further guidance on the selection of appropriate transmittal methods, licensees may refer to the Government of Canada’s Operational Security Standard on Physical Security.
8.1 Nuclear material accountancy reports
All licensees who possess nuclear material shall make reports to the CNSC, according to the reporting frequencies listed in Appendix D: Table D1. The CNSC may require some reports to be submitted more frequently, to support IAEA verification activities.
Descriptions of the data to be included in each type of report are provided in Appendix D: Table D2. Forms for nuclear material accountancy reports are available from the CNSC’s Safeguards and nuclear materials accountancy forms Web page. For the Inventory Change Document and the Physical-Key Measurement Point Inventory Summary, these shall be the only forms used. Alternatively, Extensible Mark-up Language (.xml) specifications can be obtained for these two forms, upon request.
8.1.1 Electronic reporting
All licensees who are required to submit nuclear material accountancy reports (see section 8.1), shall do so using the NMAR e-business system website.
The NMAR e-business system accepts reports in the following formats:
|Report type||Accepted format|
|Inventory change document||Extensible Markup Language (.xml)
Microsoft Excel (.xls, .xlsx)
|Physical-key measurement point inventory summary|
Microsoft Excel (.xls, .xlsx)
Portable Document Format (.pdf)
|List of inventory items|
|Obligated material inventory summary|
|Requests for exemption, de-exemption and termination||Portable Document Format (.pdf)|
Note: Where a given report is acceptable in both Microsoft Excel and Portable Document Format, the CNSC’s preference is for Microsoft Excel.
An NMAR access code can be obtained from the CNSC. Alternate arrangements can be made with the CNSC for files that cannot be submitted via NMAR; for example, because of file size.
Further information relevant to the use of NMAR is available on the NMAR e-business system website.
8.1.2 Inventory change document
An inventory change is any increase or decrease, in terms of batches, in a licensee’s nuclear material inventory. All inventory changes shall be reported to the CNSC on an inventory change document (ICD), using the inventory change codes defined in Appendix D: Table D3. For all shipments of nuclear material, the shipper shall provide a copy of the ICD to the receiver.
Correcting or deleting an inventory change document
Corrections to ICDs shall be effected by submitting a correcting ICD with the necessary changes. A correcting ICD shall be dated with the current date, not the date on which the original transaction occurred. The correcting ICD will be identical to the original, save for the date in Label 412, the fields being corrected, the entry of 'C' (for 'correction') in Label 309, and Label 1021 being incremented by 1. A note shall be added to the remarks section of a correcting ICD to explain the reason for the correction.
Deleting ICDs can be used to completely withdraw an ICD. Deleting ICDs shall be effected by submitting an ICD identical to the original except dated with the current date in Label 412 and the entry of 'D' for 'delete' in Label 309 (Label 1021 remains 0). A note shall be added to the remarks section in Label 1004 of deleting ICDs explaining the reason for the deletion.
Some fields on the ICD (Date, Batch Name, MBA, IC Type, Safeguards Status and Element Code, if the change to Element Code impacts the Safeguards Status) cannot be corrected by submitting a correcting ICD. In these cases, the original ICD shall be deleted and a new ICD submitted. Both the deleting ICD and the new ICD shall be dated with the current date in Label 412.
In specific situations and in consultation with the CNSC, a correcting or deleting ICD can be reported with a date other than the current date, or an ICD can be withdrawn and replaced without modifying Label 309 or Label 1021.
8.1.3 General ledger
A general ledger is a monthly listing of all inventory changes occurring during that month and provides the book inventory, that is, a running balance of the material in the MBA.
General ledgers shall be kept by licensees categorized as facilities; the CNSC will maintain general ledgers on behalf of licensees categorized as locations outside facilities. The information for an inventory change recorded on the general ledger shall be consistent with information on the ICD for each inventory change, with the exception of corrections to weights, as described below, under "Recording a correcting or deleting ICD on a general ledger". A separate general ledger shall be submitted for each element/isotope of Group 1A material.
For months in which no transactions occur, licensees categorized as facilities are not required to submit general ledgers to the CNSC. For licensees categorized as facilities, such general ledgers are considered to be source data and shall still be created, retained, and provided on request.
Correcting a general ledger
Corrections to general ledgers shall be effected by submitting a new report with the revision number incremented by 1 and the date of the revision indicated in the appropriate field.
Recording a correcting or deleting ICD on a general ledger
When a correcting or deleting ICD is submitted, the correction or deletion shall be recorded on the general ledger for the month in which the correction or deletion was reported. For a correcting ICD, if the correction is to the weight, then the weight recorded on the general ledger shall be the difference between the last reported weight and the corrected weight. For instance, if a weight were originally reported as 10 kg and then corrected to 11 kg, the general ledger entry corresponding to the correcting ICD would show 1 kg (11kg-10kg), even though the correcting ICD continues to state 11 kg. This is the only instance where the weight reported on a general ledger is not exactly the same as that reported on the corresponding ICD.
8.1.4 List of inventory items
The LII consists of a listing of Group 1 material. The LII may cover all Group 1 material onsite at a given time, as would result from a licensee’s PIT (see section 7.3), or it may cover only a subset of Group 1material onsite as needed to support a specific CNSC and/or IAEA inspection activity.
A separate LII shall be kept for each element/isotope category present onsite. Group 1A and Group 1B materials shall be recorded on separate sets of LIIs. An item is generally defined as the smallest individually labelled unit in inventory. Licensees shall be able to generate an accurate LII upon request.
Note: LIIs for spent fuel at CANDU stations are a special case, due to the extremely large number of items present. For LIIs covering spent fuel at CANDU stations, it is acceptable to provide a single line reporting each element present in each KMP, showing the number of bundles and the nuclear material mass. Itemized listings covering subsets of the spent fuel inventory shall be available on request to facilitate verification activities. At licensee request, the CNSC will consider similar arrangements for other large, homogenous inventories.
Correcting a list of inventory items
A correction to an LII shall be effected by submitting a new report with the revision number incremented by 1 and the date of the revision indicated in the appropriate field. The date on the corrected LII report shall stay the same, that is, the date for which the submitted LII was current.
8.1.5 Physical-key measurement point inventory summary
The physical KMP inventory summary (P-KMPIS) is a summary of Group 1A material by physical KMP. The P-KMPIS shall summarize the LII by grouping items with the same material description codes into batches. In instances where a licensee possesses small inventories of nuclear material, at the licensee’s request, the CNSC may waive the requirement to create and report a P-KMPIS.
Correcting or deleting a physical-key measurement point inventory summary
Corrections to P-KMPIS reports shall be effected by submitting a new report with the entry of 'C' for 'correction' in Label 309, and Label 1021 being incremented by 1. The date on the P-KMPIS report shall stay the same; that is, the date of the PIT being reported on. When submitting a correcting P-KMPIS, only the batches that are being corrected shall be included. For instance, if an original P-KMPIS had 10 batches and 2 needed correction, the correcting P-KMPIS shows only the 2 batches being corrected.
Deleting a P-KMPIS is done when it is necessary to completely withdraw some or all of the reported batches. The deletion shall be effected by submitting a P-KMPIS with the entry of '’'for 'delete' in Label 309 (Label 1021 remains 0) and listing only the batches that need to be withdrawn exactly as they were reported in the original P-KMPIS. A note shall be added to the remarks section of correcting and deleting P-KMPIS batches explaining the reason for the change.
Some fields on the P-KMPIS (Date, Batch Name, MBA, Safeguards Status and Element Code, if it impacts Safeguards Status) cannot be corrected by submitting a correcting P-KMPIS. In these cases, the affected batches on the P-KMPIS shall be deleted and resubmitted on a new P-KMPIS.
In specific situations and in consultation with the CNSC, a correcting or deleting P-KMPIS can be withdrawn and replaced without modifying Label 309 or Label 1021.
8.1.6 Reconciliation statement
A reconciliation statement is a report that calculates ID (see section 7.4); that is, the difference between the book ending inventory, derived from the most recent general ledger (for licensees categorized as facilities) or the ICDs (for licensees categorized as locations outside facilities), and the physical ending inventory, derived from the P-KMPIS or LII. A reconciliation statement shall be prepared for Group 1A material after each PIT.
When a licensee possesses small inventories of nuclear material, at the licensee’s request, the CNSC may waive the requirement to create and report a reconciliation statement.
Correcting a reconciliation statement
A correction to a reconciliation statement shall be effected by submitting a new report with the revision number incremented by 1 and the date of the revision indicated in the appropriate field. The date on the reconciliation statement shall stay the same; that is, the PIT date.
8.1.7 Obligated material inventory summary
The obligated material inventory summary (OMIS) is a list of opening and ending balance weights, by country of obligation, for any nuclear material that has foreign obligations at the licensee’s site. Both Group 1 and Group 2 materials can be subject to foreign obligations.
The OMIS report covers a calendar year; the opening balance shall be as of January 1 of the reporting year, and the closing balance shall be as of December 31 of that same year.
Unless requested by the CNSC, an OMIS report is not required for any year in which foreign obligated material was not possessed.
Correcting an obligated material inventory summary
A correction to an OMIS report is effected by submitting a new report with the revision number incremented by 1 and the date of the revision indicated in the appropriate field. The dates on the OMIS shall stay the same; that is, January 1 and December 31 for the reporting year.
8.2 Design information
All licensees categorized as facilities or locations outside facilities shall ensure that the CNSC is in possession of up-to-date design information. The structure of MBAs and KMPs at a given facility or location outside facility shall be accurately described in the design information submitted to the CNSC by that licensee. Once the CNSC has reviewed and accepted a licensee’s design information, the CNSC will submit it to the IAEA.
For licensees categorized as facilities, design information shall include all of the following:
- the identification of the facility, stating its general character, purpose, nominal capacity and geographic location, and the name and address to be used for routine business purposes
- a description of the general arrangement of the facility, including site and building maps as needed, with reference to the form, location and flow of nuclear material and to the general layout of important items of equipment which are used to handle, produce or process nuclear material
- a description of features of the facility relating to nuclear material accountancy, containment and surveillance
- a description of the existing and proposed procedures at the facility for nuclear material accountancy and control, with special reference to MBAs established by the operator, organizational responsibility, measurements of nuclear material, the random and systematic uncertainties of such measurements, and procedures for PIT
- health and safety procedures that the IAEA shall observe and with which the inspectors shall comply at the facility
For licensees categorized as locations outside facilities, design information shall include all of the following:
- a general description of the use of the nuclear material, its geographic location, the user's name and address for routine business purposes, and site and building maps as needed
- a general description of the existing and proposed procedures for nuclear material accountancy and control, including organizational responsibility, measurements of nuclear material, the random and systematic uncertainties of such measurements, and procedures for PIT
- health and safety procedures that the IAEA shall observe and with which the inspectors shall comply at the facility
Design information shall be updated and submitted to the CNSC as soon as the decision is taken to make changes that would render the information previously provided incomplete or inaccurate.
For the construction of new facilities or locations outside facilities, preliminary design information shall be submitted to the CNSC as soon as the decision to construct or to authorize construction has been taken, whichever is earlier. An update to that preliminary design information shall be submitted to the CNSC no later than 270 days before the start of construction. Similarly, final design information or design information approved for construction shall be submitted to the CNSC no later than 270 days before the first receipt of nuclear material at the facility.
Licensees should provide design information on the appropriate IAEA design information questionnaire (DIQ) form, available on request from the CNSC. Licensees should review their design information annually to verify that it is up to date. The CNSC may require that updates to design information be provided on a specified timeline, and the CNSC may request design information supplemental to that listed above.
8.3 Operational information
All licensees categorized as facilities shall submit an annual operational program to the CNSC, covering safeguards-relevant information for the upcoming calendar year. This program shall be submitted to the CNSC by September 30 each year, and shall be updated by the licensee as necessary so that the operational program remains current.
Every facility shall submit an annual operational program that includes all of the following information:
- the licensee’s preferred PIT date for the upcoming calendar year
- any anticipated shutdown periods during the upcoming calendar year
- information on expected transfers of nuclear material in the next calendar year
- updates on current or upcoming projects of relevance to safeguards, such as the construction or decommissioning of a building, the commencement of projects involving nuclear material, changes to the types of nuclear material being possessed, etc.
In consultation with affected licensees, the CNSC may request updates to operational information on a more frequent basis, e.g. quarterly or weekly, to facilitate IAEA verification activities. Forms for submission of operational data are available on the CNSC’s Safeguards and nuclear materials accountancy forms web page.
Where there is uncertainty, the CNSC can be contacted for guidance in determining which projects are of relevance to safeguards.
8.4 Information required by the Additional Protocol
All licensees shall submit the following information (as applicable) to the CNSC by March 15 each year, so that the CNSC may submit Canada’s annual update under the Additional Protocol  to the IAEA:
- A general description of, and information specifying, the location of nuclear fuel cycle related research and development activities, as defined in Appendix B: List of Nuclear Fuel Cycle Related Research and Development Activities.
- For licensees categorized as facilities or locations outside facilities, current drawings of the site, a general description of each building on the site, including its use and, if not apparent from that description, its contents. Note that current site drawings need only be submitted if previously-submitted site drawings are no longer accurate.
- A description of the scale of operations for each location engaged in the activities specified in Appendix A: List of Declarable Nuclear-Related Manufacturing Activities.
- Information specifying the location, operational status, annual production capacity and the current annual production of uranium mines and concentration plants and thorium concentration plants.
- Information regarding each location with a stockpile of uranium or thorium ore concentrates greater than 1 metric tonne, including the quantities, the chemical composition and the use or intended use of such material. The provision of this information does not require detailed nuclear material accountancy, and shall not include material considered to be in transit.
- Information regarding Group 1B material, as follows:
- for materials exempted from safeguards pursuant to Article 37 of the Safeguards Agreement , the quantities, uses and locations of such material
- for materials exempted from safeguards pursuant to Article 36 of the Safeguards Agreement, but where the material is not yet in a non-nuclear end-use form, information regarding the quantities and uses at each location
- Information regarding the location or further processing of intermediate or high-level waste containing plutonium, high enriched uranium or uranium-233 on which safeguards have been terminated pursuant to Article 11 of the Safeguards Agreement. For the purpose of this paragraph, "further processing" does not include repackaging of the waste or its further conditioning not involving the separation of elements, for storage or disposal.
- General plans for the succeeding 10-year period relevant to the development of the nuclear fuel cycle (including planned nuclear fuel cycle-related research and development activities) when approved by the appropriate authorities in Canada.
Information in licensee submissions shall cover the previous calendar year.
Licensees should use the IAEA’s Protocol Reporter software when submitting such information to the CNSC. Copies of this software are available upon request from the CNSC.
9. Retention of Records
Licensees shall retain copies of any records required under this regulatory document:
- for the period specified under applicable CNSC regulations, or
- as long as nuclear material relevant to the records remains in the licensee’s possession, or
- as long as the licensee continues to perform declarable nuclear-related manufacturing activities (as defined in Appendix A: List of Declarable Nuclear-Related Manufacturing Activities) relevant to the records, or
- as long as the licensee continues to perform nuclear fuel cycle-related research and development activities (as defined in Appendix B: List of Nuclear Fuel Cycle-Related Research and Development Activities) relevant to the records, or
- for a minimum of five years, whichever is longer
Appendix A: List of Declarable Nuclear-Related Manufacturing Activities
For the purposes of facilitating Canada’s compliance with its safeguards agreements, certain nuclear-related manufacturing activities shall be reported to the Canadian Nuclear Safety Commission (see section 8.4). These activities are defined in annex I to the Additional Protocol  and include:
|(i)||the manufacture of centrifuge rotor tubes or the assembly of gas centrifuges for use in isotopic separation processes|
|(ii)||the manufacture of gaseous diffusion barriers for use in isotopic separation processes|
|(iii)||the manufacture or assembly of laser-based systems for isotopic separation|
|(iv)||the manufacture or assembly of electromagnetic isotope separators|
|(v)||the manufacture or assembly of columns or extraction equipment especially designed or prepared for use in isotopic separation systems using chemical exchange or ion exchange|
|(vi)||the manufacture of aerodynamic separation nozzles or vortex tubes for use in isotopic separation processes|
|(vii)||the manufacture or assembly of uranium plasma generation systems|
|(viii)||the manufacture of zirconium tubes|
|(ix)||the manufacture or upgrading of heavy water or deuterium|
|(x)||the manufacture of nuclear grade graphite, having a purity level better than 5 parts per million boron equivalent and with a density greater than 1.50 g/cm3|
|(xi)||the manufacture of flasks for the transportation and/or storage of irradiated fuel|
|(xii)||the manufacture of reactor control rods|
|(xiii)||the manufacture of criticality safe (e.g. small diameter, annular or slab) tanks and vessels.|
|(xiv)||the manufacture of irradiated fuel element chopping machines|
|(xv)||the construction of hot cells, meaning a cell or interconnected cells outfitted with equipment for remote operations, totalling at least 6 m3 in volume, and with shielding equal to or greater than the equivalent of 0.5 m of concrete with a density of 3.2 g/cm3 or greater|
Appendix B: List of Nuclear Fuel Cycle-Related Research and Development Activities
For the purposes of facilitating Canada’s compliance with its safeguards agreements, certain nuclear fuel cycle-related research and development activities shall be reported to the Canadian Nuclear Safety Commission (see section 8.4). Nuclear fuel cycle-related research and development activities are defined in Article 18(a) of the Additional Protocol  as those activities which are specifically related to any process or system development aspect of any of the following:
- conversion of nuclear material
- enrichment of nuclear material
- nuclear fuel fabrication
- critical facilities
- reprocessing of nuclear fuel including the selective separation of elements from nuclear fuel, or from irradiated targets
- processing (not including repackaging or conditioning not involving the separation of elements, for storage or disposal) of intermediate or high-level waste containing plutonium, high enriched uranium or uranium-233
Note that this does not include activities related to:
- theoretical or basic scientific research
- research and development on industrial radioisotope applications, medical, hydrological and agricultural applications, health and environmental effects, and improved maintenance
Appendix C: Guidance on Materials Not Subject to Safeguards
The Canadian Nuclear Safety Commission (CNSC) considers that the following substances are material in a non-nuclear end use form from which the uranium, plutonium-239 and thorium is practicably irrecoverable, and as such, are not subject to safeguards. Note that this list is representative and not exhaustive.
- thorium in lantern mantles, welding rods, light bulbs, lenses or optical components, and electronic components
- natural uranium, depleted uranium or thorium as a minor constituent in an alloy which is not being used for its nuclear properties
- natural uranium, depleted uranium or thorium used as a colorant, pigment, stain or glaze
- nuclear material as contamination at activity concentrations equal to or less than the exemption quantities listed in column 2 of Schedule 1 of the Nuclear Substances and Radiation Devices Regulations
For material in non-nuclear end use forms not listed above, please contact the CNSC for guidance on safeguards reporting.
Appendix D: Nuclear Material Accountancy Reference Tables
This section contains the following reference tables:
D1: Reporting frequency for nuclear material accountancy reports
D2: Labels and data elements used in nuclear material accountancy reports
D3: Inventory change codes
D4: Material description codes
D5: Element and isotope codes
D6: Measurement basis codes
|Report type||Group 1 material||Group 2 material|
|Inventory change document (ICD)||Next business day following the inventory changeFootnote 3|
|General ledger||For facilities: By the seventh business day after the end of the reporting month, only in months in which an inventory change occurred||Not required||Not required|
|Split general ledger (for months in which a physical inventory taking [PIT] occurs but where the PIT date is not the end of the month)||
For facilities: First report: by the seventh business day after a PIT is conducted, only if an inventory change occurred in the period between the beginning of the month and the PIT date
For facilities: Second report: by the seventh business day after the end of the reporting month, only if an inventory change occurred in the period between the PIT date and the end of the month
|Not required||Not required|
|List of inventory items||Required to be submitted by the seventh business day after a PIT, or upon the CNSC’s request||Upon request by the Canadian Nuclear Safety Commission (CNSC)||Not required|
|Physical-KMP inventory summary||Required to be submitted by seventh business day after a PIT||Not required||Not required|
|Obligated material inventory summary||Annually on January 31 for any year in which foreign-obligated material was possessed, and upon the CNSC’s request|
|Reconciliation statement||Required to be submitted by the seventh business day after a PIT||Not required||Not required|
|Label||Data element||Applicable reports||DescriptionFootnote 4|
|N/A||Report type||Inventory change document (ICD)||Enter the report type for the inventory change; there are six options: internal, domestic, import, export, retransfer, and from holding account.|
|N/A||Licensee reference no.||ICD, Physical-key measurement point inventory summary (P-KMPIS)||Optionally enter a licensee reference number.|
|N/A||Location identification (LOC ID)||ICD||If applicable, enter the LOC ID provided by the Canadian Nuclear Safety Commission (CNSC).|
|N/A||Tracking identifier||ICD||Enter tracking identifier provided by the CNSC when reporting exempted/de-exempted material.|
|N/A||Facility name||General ledger (GL), list of inventory items (LII), obligated material inventory summary (OMIS), reconciliation statement (RS)||Enter the facility name.|
|N/A||Revision date||GL, LII, OMIS, RS||Enter the date the report is first issued or is revised.|
|015||Reporting period/date||GL, LII, P-KMPIS, OMIS, RS||
(If a physical inventory taking (PIT) is conducted on any day other than the last of the month, split GLs are required, one covering the period from the 1st of month to the PIT date, and one covering the day after the PIT date to the last of the month.)
LII, P-KMPIS, and RS:
|207||Facility code||GL, LII, OMIS, RS||Enter the appropriate code for the reporting facility or location outside facility; codes are available on the CNSC’s Safeguards and nuclear materials accountancy forms Web page.|
|307||Material balance area (MBA) code||GL, LII, P-KMPIS, OMIS, RS||Enter the appropriate code for the reporting facility or location outside facility; codes are available on the CNSC’s Safeguards and nuclear materials accountancy forms Web page.|
|309||Entry status||ICD, P-KMPIS||Use "N" for a new report, "C" to correct a previous report, and "D" to delete a previous report.
Use "U" when reporting the following inventory change codes: L+, L-, R+ and R-.
|370||MBA/country code/facility code from||ICD, GL||
Enter the code for the shipping MBA for domestic transfers and the country code for imports. For domestic shippers who do not have an MBA code, enter "NA".
Codes are available on the CNSC’s Safeguards and nuclear materials accountancy forms Web page.
|372||MBA/country code/facility code to||ICD, GL||
Enter the code for the receiving MBA for domestic transfers and the country code for exports; for an internal inventory change, enter the MBA reporting the change; for domestic receivers who do not have an MBA code, enter "NA".
Codes are available on the CNSC’s Safeguards and nuclear materials accountancy forms Web page.
|407||Key measurement point (KMP) code||ICD, GL, LII, P-KMPIS||
For this label there are two fields to complete, one for the shipper and one for the receiver; flow-KMP and physical-KMP codes are specified in the design information for facilities and locations outside facilities. In all other cases, codes are provided by the CNSC.
|411||Inventory change code||ICD, GL||
For shipments/receipts, the shipper and receiver each enter the applicable inventory change code, in the appropriate field.
For internal inventory changes, the initiating MBA enters the applicable code in the receiver’s field.
Inventory change codes are listed in Table D3.
|412||Shipped date and internal/received date||ICD, GL||
Enter the date on which the inventory change occurred or was established.
|430||Material description code (MDC)||ICD, LII, P-KMPIS||This label consists of a four character code indicating the physical and chemical form, type of container, and irradiation status of the material. Enter the code using Table D4; each batch can have only one MDC.|
|436||Chemical and physical description||ICD||Enter a textual description of the batch of material (maximum 100 characters).|
|446||Batch name (internal/receiver inventory changes)||ICD, GL, P-KMPIS||
Enter the batch name in alphanumeric format (up to 16 characters).
ICD and GL:
|447||Shipper’s batch name (shipper inventory changes)||ICD, GL||The batch name is entered in alphanumeric format, up to a maximum of 16 characters. This label is used for reporting batch names related to shipments. For imports, enter the foreign shipper’s batch name or enter the keyword "unknown".|
|469||Measurement basis code||ICD, LII, P-KMPIS||Enter the appropriate measurement basis code to describe where the mass has been determined, and whether or not it has been reported previously. Measurement basis codes are listed in Table D6.|
|470||Number of items||ICD, GL, LII, P-KMPIS||
ICD and GL:
|610||Element weight – natural uranium||ICD, GL, LII, P-KMPIS, OMIS, RS||
Report the element weight of each category of nuclear material in the item or batch, with not less than one decimal place and up to six decimal places.
|620||Element weight – depleted uranium||ICD, GL, LII, P-KMPIS, OMIS, RS||See description for label 610.|
|630||Element weight – enriched uranium||ICD, GL, LII, P-KMPIS, OMIS, RS||See description for label 610.|
|640, 660, 670||Isotope weight – enriched uranium||ICD, GL, LII, P-KMPIS, OMIS, RS||
Report the isotope weight of each category of nuclear material in the item or batch, with not less than one decimal place and up to six decimal places.
Note: Different isotopes of enriched uranium cannot be reported in the same batch.
|700||Element weight – plutonium||ICD, GL, LII, P-KMPIS, OMIS, RS||See description for label 610.|
|800||Element weight – thorium||ICD, GL, LII, P-KMPIS, OMIS, RS||See description for label 610.|
|1000||Line number||GL||Number each line entry consecutively with an integer. The first line number is "0" (zero) and the opening balance is reported on that line. The ending balance for the reporting period is reported on the last line.|
|1001||Item identification (item ID)||LII||Enter the item ID for individual items. For example, bundle serial number, drum number, or source serial number.|
|1002||Corrections – previous date||GL||For corrections, enter the date that the ICD being corrected was originally reported or the date of the most recent correction to it.|
|1003||Corrections – line number||GL||In the case of corrections, enter the line number of the general ledger on which the original ICD, or the most recent correction to it, was reported.|
|1004||Comments/remarks||ICD, GL, LII, P-KMPIS, OMIS||Enter any additional information to explain or assist in identifying the batch or items reported, as applicable.
ICD, GL, LII, OMIS:
Use a maximum of 2000 characters.
Use a maximum of 64 characters.
|1006||Element code||ICD, GL, LII, P-KMPIS||Enter the appropriate element code for the material on the report, from Table D5.|
|1020||Safeguards status||ICD, P-KMPIS||Enter the safeguards status of the material. Label 1020 has 4 options: "1A" for Group 1A material, "2" for Group 2 material, "Exempt U" for material exempted from safeguards under Article 36 of the Safeguards Agreement , and "Exempt Q" for material exempted from safeguards under Article 37 of the Safeguards Agreement.|
|1021||Correction/report revision no.||ICD, GL, LII, P-KMPIS, OMIS, RS||Enter "0" for original reports and increase the number by 1 for each subsequent report.|
|1023||Units||ICD, GL, LII, P-KMPIS||Enter the appropriate weight unit for the element/isotope reported. Units for reporting shall be in grams for enriched uranium (both element and isotope weights) and plutonium, and in kilograms for natural uranium and thorium, and depleted uranium.|
|1024||Isotope code||ICD, GL, LII, P-KMPIS||Enter the appropriate isotope code for the material on the report, from Table D5. Isotope codes are only reported for enriched uranium.|
|1025||Unique identifier (optional)||ICD, GL, LII||Optionally enter batch or item identification information such as the lot number or storage location. This data is intended to supplement that supplied under labels 446, 447 or 1001. Use a maximum of 20 characters.|
|1027||Shipper company||ICD||Enter the company name, contact name and address of the shipper.|
|1028||Internal/receiver company||ICD, P-KMPIS||
Enter the company name and contact name.
|1030||Element weight balance||GL||On line 0, enter the opening balance of the element weight, which is the ending balance of the previous GL period. Beginning on line 1, enter the running element weight balance. This balance may be reported to a maximum of six decimal places. On the last line of the ledger, enter the ending balance of the element weight in the MBA for the reported period.|
|1031||Isotope weight balance||GL||On line 0, enter the opening balance of the isotope weight, which is the ending balance of the previous GL period. Beginning on line 1, enter the running isotope weight balance. This balance may be reported to a maximum of six decimal places. On the last line of the ledger, enter the ending balance of the isotope weight in the MBA for the reported period.|
|1032||Element weight – natural uranium concentrate||ICD, OMIS||See description for label 610.|
|1634||Element weight – thorium concentrate||ICD, OMIS||See description for label 610.|
|2001||Export licence number||ICD||Enter the full CNSC export licence (e.g., EL-A1-1234.1/2015) under which the export of nuclear material has been authorized, or the CNSC letter of consent number when reporting a transfer of nuclear material from a holding account. In cases involving holding accounts, it is also necessary to enter the abbreviation "HA" (holding account) in label 411, and to enter the code for the holding account from which the transfer was made in label 2005.|
|2002||Import licence number||ICD||Enter the full CNSC import licence (e.g., IL-A1-1234.1/2015) under which an import of nuclear material has been authorized.|
|2003||Country of origin code||ICD||Enter the country where the nuclear material was mined or created, on the report. For multiple countries of origin, enter only one country of origin on each line of the form. Country codes are available on the Safeguards and nuclear materials accountancy forms Web page..|
|2004||Obligated material – country code||ICD, OMIS||Enter country codes for countries of obligation for the material being reported, if any. For imports or exports, such codes are provided by the CNSC, while for domestic transfers, such codes are provided by the licensee. If the material has no foreign obligations, this field and the obligated weight fields (labels 2006, 2007) are left blank.|
|2005||Holding account code||ICD||Enter the applicable holding account code where nuclear material is exported to or transferred from. Holding account codes are available on the Safeguards and nuclear materials accountancy forms Web page.|
|2006||Obligated material – element weight||ICD||Enter the element weight for each foreign obligation code entered in label 2004. For unobligated and Canadian material, this field is left blank.|
|2007||Obligated material – isotope weight||ICD||Enter the isotope weight for each foreign obligation code provided in label 2004. For unobligated and Canadian material, this field is left blank.|
|Keyword||Code||Explanation||Internal Inventory Change?||Applicable Material Groups|
|Accidental gain||GA||Nuclear material unexpectedly found to be present in the Material Balance Area (MBA). GA cannot be used for material unexpectedly detected in the course of a Physical Inventory Taking (PIT) – in that case, the found material must be reported as ID.||Yes||Group 1A|
|Accidental loss||LA||Irreversible and inadvertent loss of a known quantity of nuclear material. LA cannot be used for material unexpectedly found to be missing in the course of a PIT – in that case, the missing material must be reported as inventory difference (ID).||Yes||Group 1A|
|Quantity of uranium that has changed category as a result of blending, enrichment, depletion, or burn-up. The first letter denotes the original category, the second letter the resulting category: (E = enriched, N = natural, D = depleted uranium).||Yes||Group 1A|
|De-exemption quantity||DQ||Reapplication of safeguards on Group 1B material previously exempted from safeguards under Article 37 of the Safeguards Agreement .||Yes||Group 1B|
|De-exemption use||DU||Reapplication of safeguards on Group 1B material previously exempted from safeguards under Article 36 of the Safeguards Agreement .||Yes||Group 1B|
|Exemption quantity||EQ||Exemption of Group 1A material from safeguards under Article 37 of the Safeguards Agreement . This code can only be used with advance permission from the Canadian Nuclear Safety Commission (CNSC) and the International Atomic Energy Agency (IAEA), obtained by submitting the form found on the Safeguards and nuclear materials accountancy forms Web page.||Yes||Group 1A|
|Exemption use||EU||Exemption of Group 1A material from safeguards under Article 36 of the Safeguards Agreement . This code can only be used with advance permission from the CNSC and IAEA, obtained by submitting the form found on the Safeguards and nuclear materials accountancy forms Web page.||Yes||Group 1A|
|Measured discard||LD||Loss of a measured or estimated quantity of nuclear material that has been consumed or disposed of in such a way that it is not suitable for further nuclear use.||Yes||Group 1A|
|Nuclear loss||LN||Consumption of nuclear material due to its transformation into other elements or isotopes as a result of nuclear reactions.||Yes||Group 1A|
|Nuclear production||NP||Production of plutonium-239 or uranium-233 in a nuclear reactor.||Yes||Group 1A|
|Receipt domestic||RD||A receipt of nuclear material from a domestic shipper.||No||Group 1,
|Receipt foreign||RF||A receipt of nuclear material imported into Canada.||No||Group 1A,
|Receipt at starting point||RS||A receipt of nuclear material at the starting point of detailed nuclear material accountancy.||Yes||Group 1A|
|Re-batching – decrease in batch content||RM||Quantity by which the batch mentioned in the entry is diminished due to re-batching.||Yes||Group 1A|
|Re-batching – increase in batch content||RP||Quantity of material added to the batch mentioned in the entry from another batch due to re-batching.||Yes||Group 1A|
|Retained waste – transfer to||TW||
The transfer of Group 1A material to retained waste, after receipt of approval from the CNSC and IAEA.
Material to be designated as retained waste must contain nuclear material which is unrecoverable, and it must be stored separately from other nuclear material. Material designated as retained waste remains Group 1A material but is not subject to routine IAEA verification and so must not appear on the list of inventory items (LII) or Physical-key measurement point inventory summary (P-KMPIS) for the storing MBA. A separate LII covering only retained waste must be available on CNSC request. Foreign obligations on retained waste must continue to be tracked and reported on the OMIS report. Material designated as retained waste cannot be processed or transferred out of the MBA, without first being transferred back from retained waste.
|Retained waste – transfer from||FW||Transfer of material that had been stored as retained waste back to the main Group 1A material inventory. Such material once again becomes subject to routine IAEA verification and so must be included on the LII and P-KMPIS of the storing MBA.||Yes||Group 1A|
|Shipment domestic||SD||A shipment of nuclear material to a domestic receiver.||No||Group 1,
|Shipment foreign||SF||An export of nuclear material out of Canada.||No||Group 1A,
|Shipper-Receiver Difference||DI||Difference between the quantity reported by the shipper and the quantity measured by the receiver. DI should only be reported in cases where the shipper and receiver cannot agree on revising the weight of the shipment. Only the receiver can report DI. DI = (shipper's declared weight) – (receiver's measured weight)||Yes||Group 1A|
|Termination||TU||Termination of safeguards on nuclear material which has been consumed or diluted in such a way that it is no longer useable for any nuclear activity, or has become practicably irrecoverable. This code can only be used with advance permission from the CNSC and IAEA.||Yes||Group 1A|
|Positive ID||L-||To report a positive ID. In label 309, use "U" when using this code.||Yes||Group 1A|
|Negative ID||L+||To report a negative ID. Use the absolute value of ID, i.e. enter the negative ID as a positive value on the inventory change document (ICD). In label 309, use "U" when using this code.||Yes||Group 1A|
|Rounding||R+||To report rounding up. In label 309, use "U" when using this code.||Yes||Group 1A|
|Rounding||R-||To report rounding down. Use the absolute value, i.e. enter the rounding down as a positive value on the ICD. In label 309, use "U" when using this code.||Yes||Group 1A|
|First two characters: Physical and chemical forms|
|First keyword||Second keyword||First two characters|
|Liquid waste||Low active||WL|
|Small quantities, samples||–||SS|
(cleanouts, clinkers, sludge, fines , other)
(plastics, gloves, papers, etc.)
|Third character: Container types|
|Third keyword||Third character|
|Discrete fuel units (fuel only)||S|
|Fourth character: Characterization of material|
|Fourth keyword||Fourth character|
|Uranium or thorium ore concentrate||CONC|
|Element code (label 1006)||Element||Weight units
|Group 1 material|
|E (uranium enriched in either uranium 235, or uranium 233, or both||Enriched uranium||g|
|Group 2 material|
|C||Natural uranium concentrate||kg|
|Isotope code (label 1024)||Element||Weight units
|K||Enriched – Uranium-233 content||g|
|J||Enriched – Uranium-233 and Uranium-235 content||g|
|G||Enriched – Uranium-235 content||g|
|Mass value for batch
not reported previously
by the reporting
material balance area
|Mass value for batch
reported previously by
the reporting MBA
|Mass value based on a
measurement made by
the reporting MBA
|Mass value based on
out elsewhere (e.g., at
For definitions of terms used in this document, see REGDOC-3.6, Glossary of CNSC Terminology.
REGDOC-3.6 includes terms and definitions used in the Nuclear Safety and Control Act (NSCA), the regulations made under the NSCA, and CNSC regulatory documents and other publications. REGDOC-3.6 is provided for reference and information.
- Treaty on the Non-Proliferation of Nuclear Weapons (NPT), United Nations, New York.
- Agreement Between the Government of Canada and the International Atomic Energy Agency for the Application of Safeguards in Connection with the Treaty on the Non-Proliferation of Nuclear Weapons, 1972, INFCIRC/164
- Protocol Additional to the Agreement Between Canada and the International Atomic Energy Agency for the Application of Safeguards in Connection with the Treaty on the Non-Proliferation of Nuclear Weapons, 2000, INFIRC/164/Add.1
- ASTM-C753 04 Standard Specification for Nuclear-Grade, Sinterable Uranium Dioxide Powder, ASTM International, West Conshohocken, PA, 2004.
- STR-368, International Target Values 2010 for Measurement Uncertainties in Safeguarding Nuclear Materials, IAEA, Vienna, Austria, 2010.
- N290.7-14, Cyber Security for Nuclear Power Plants and Small Reactor Facilities, CSA Group, 2014
- Footnote 1
As per Article 4b.(ii) of the Additional Protocol , in exceptional circumstances, the IAEA may give less than two hours' notice.
- Footnote 2
Note that item counting of nuclear material is limited to CAs called at specified locations, namely, those which must be declared under Articles 2.a.(v) – (viii) of the Additional Protocol .
- Footnote 3
Movements of Group 1B material must be reported to the CNSC on an ICD. However, no such reporting is required when material is transferred temporarily and the ownership of the material does not change. Licensees must, however, keep source data that indicates the location of the nuclear material involved in such transfers.
- Footnote 4
The following symbols shall not be used when reporting information in labels 015 through 800: colon, forward slash, semi-colon, and number sign (#).
CNSC Regulatory Document Series
Facilities and activities within the nuclear sector in Canada are regulated by the Canadian Nuclear Safety Commission (CNSC). In addition to the Nuclear Safety and Control Act and associated regulations, these facilities and activities may also be required to comply with other regulatory instruments such as regulatory documents or standards.
Effective April 2013, the CNSC's catalogue of existing and planned regulatory documents has been organized under three key categories and twenty-five series, as set out below. Regulatory documents produced by the CNSC fall under one of the following series:
- 1.0 Regulated facilities and activities
- Series 1.1 Reactor facilities
- 1.2 Class IB facilities
- 1.3 Uranium mines and mills
- 1.4 Class II facilities
- 1.5 Certification of prescribed equipment
- 1.6 Nuclear substances and radiation devices
- 2.0 Safety and control areas
- Series 2.1 Management system
- 2.2 Human performance management
- 2.3 Operating performance
- 2.4 Safety analysis
- 2.5 Physical design
- 2.6 Fitness for service
- 2.7 Radiation protection
- 2.8 Conventional health and safety
- 2.9 Environmental protection
- 2.10 Emergency management and fire protection
- 2.11 Waste management
- 2.12 Security
- 2.13 Safeguards and non-proliferation
- 2.14 Packaging and transport
- 3.0 Other regulatory areas
- Series 3.1 Reporting requirements
- 3.2 Public and Aboriginal engagement
- 3.3 Financial guarantees
- 3.4 Commission proceedings
- 3.5 CNSC processes and practices
- 3.6 Glossary of CNSC terminology
Note: The regulatory document series may be adjusted periodically by the CNSC. Each regulatory document series listed above may contain multiple regulatory documents. For the latest list of regulatory documents, visit the CNSC's website.
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