| ACR | Advanced CANDU Reactor |
| ACS | Advisory Committee on Standards |
| AECA | Atomic Energy Control Act |
| AECB | Atomic Energy Control Board |
| AECL | Atomic Energy of Canada Limited |
| AGTMF | Above-Ground Tailings Management Facility |
| ALARA | As Low As Reasonably Achievable |
| ALI | Annual Limit on Intake |
| APM | Adaptive Phased Management |
| AREVA | AREVA Resources Canada Inc. |
| ASDR | L'aire de stockage des déchets radioactifs |
| ASME | American Society of Mechanical Engineers |
| BLW | Boiling Light Water |
| BNPD | Bruce Power Nuclear Power Development |
| CAMECO | Cameco Corporation |
| CANDU | Canadian Deuterium Uranium |
| CANSTOR | CANDU Storage |
| CCP | CNSC Compliance Program |
| CEA Act | Canadian Environmental Assessment Act |
| CEA Agency | Canadian Environmental Assessment Agency |
| CEPA | Canadian Environmental Protection Act |
| CLEAN | Contaminated Lands Evaluation and Assessment Network |
| CMD | Commission Member Document |
| CNEN | Brazilian Nuclear Energy Commission |
| CNSC | Canadian Nuclear Safety Commission |
| CRAG | Cost Recovery Advisory Group |
| CRL | Chalk River Laboratories |
| CSA | Canadian Standards Association |
| CURE | Canadian Uranium Regulatory Examination |
| DELs | Derived Emission Limits |
| DGR | Deep Geologic Repository |
| DJX | Dominique-Janine Extension |
| DNJ | Dominique-Janine North |
| DO | Designated Officer |
| DPNGS | Douglas Point Nuclear Generating Station |
| DPWMF | Douglas Point Waste Management Facility |
| DRLs | Derived Release Limits |
| DSM | Dry Storage Modules |
| EA | Environmental Assessment |
| EASR | EA Study Report |
| EC | Environment Canada |
| EMS | Environmental Management System |
| EOC | Emergency Operations Centre |
| EP | Emergency Preparedness |
| EQC | Environmental Quality Committee |
| FA | Federal Authority |
| FA | Fisheries Act |
| FISST | Fissile Solution Storage Tank |
| FNEP | Federal Nuclear Emergency Plan |
| FPS | Fuel Packaging and Storage |
| G1WMF | Gentilly-1 Waste Management Facility |
| GNSCR | General Nuclear Safety and Control Regulations |
| HADD | Harmful Alteration, Disruption or Destruction |
| HC | Health Canada |
| HEPA | High-Efficiency Particulate Air |
| HEU | Highly Enriched Uranium |
| HLW | High-Level Radioactive Waste |
| HQ | Hydro-Québec |
| HWUP | Heavy Water Upgrade Plant |
| IAEA | International Atomic Energy Agency |
| IAEA BSS | International Basic Safety Standards for Protection against Ionizing Radiation and for the Safety of Radiation Sources |
| IAS | Independent Assessment Study |
| ICMS | Informal Conflict Management System |
| ICP | Institutional Control Program |
| ICRP | International Commission on Radiological Protection |
| ICWP | Institutional Control Working Group |
| ILW | Intermediate-Level Radioactive Waste |
| ILW-LL | Long-Lived Intermediate-Level Radioactive Waste |
| ILW-SL | Short-Lived Intermediate-Level Radioactive Waste |
| INAC | Indian and Northern Affairs Canada |
| IRRS | Integrated Regulatory Review Services |
| ITC | International Trade Canada |
| JEB | John Everett Bates |
| JRG | Joint Regulatory Group |
| JRPA | Joint Review Panel Agreement |
| L&ILW | Low- and Intermediate-Level Radioactive Waste |
| LEU | Low-Enriched Uranium |
| LLRWMO | Low-Level Radioactive Waste Management Office |
| LLW | Low-Level Radioactive Waste |
| LWE | Liquid Waste Evaporator |
| LWTS | Liquid Waste Transfer and Storage |
| MACSTOR | Modular Air-Cooled Storage |
| MAGS | Modular Above-Ground Storage |
| MAPLE | Multipurpose Applied Physics Lattice Experiment |
| MNR | McMaster Nuclear Reactor |
| MPMO | Major Projects Management Office |
| NB EMO | New Brunswick Emergency Measures Organization |
| NB Power | New Brunswick Power Corporation |
| NCA | Nuclear Cooperation Agreement |
| NEA | Nuclear Energy Act |
| NEM | Nuclear Emergency Management |
| NFWA | Nuclear Fuel Waste Act |
| NGO | Non-Governmental Organization |
| NGS | Nuclear Generating Station |
| NLA | Nuclear Liability Act |
| NLLP | Nuclear Legacy Liabilities Program |
| NPD | Nuclear Power Development |
| NPP | Nuclear Power Plant |
| NRCan | Natural Resources Canada |
| NRU | National Research Universal |
| NRX | National Research Experimental |
| NS EMO | Nova Scotia Emergency Measures Organization |
| NSCA | Nuclear Safety and Control Act |
| NSERC | Natural Sciences and Engineering Research Council |
| NSR | Nuclear Security Regulations |
| NSRDR | Nuclear Substances and Radiation Devices Regulations |
| NSSR | National Sealed Source Registry |
| Ntr | Northern Transportation Route |
| NWMO | Nuclear Waste Management Organization |
| OMOE | Ontario Ministry of the Environment |
| OP&P | Operating Policies and Principles |
| OPG | Ontario Power Generation |
| ORC | Ontario Realty Corporation |
| OSCQ | L'Organisation de la sécurité civile du Québec |
| PCB | Polychlorinated Biphenyl |
| PGLTWMF | Port Granby Long-Term Waste Management Facility |
| PHAI | Port Hope Area Initiative |
| PHLTWMF | Port Hope Long-Term Waste Management Facility |
| PTNSR | Packaging and Transport of Nuclear Substances Regulations |
| Ptr | Pool Test Reactor |
| PWQO | Ontario Provincial Water Quality Objectives |
| R&T | Retrieval and Transfer |
| RA | Responsible Authority |
| RCSA | Re-tube Components Storage Area |
| RMC | Royal Military College |
| RPR | Radiation Protection Regulations |
| RWOS1 | Radioactive Waste Operations Site 1 |
| SART | Self-Assessment Review Team |
| SaskEMO | Saskatchewan Emergency Management Organization |
| SLHHERA | Screening Level Human Health and Ecological Risk Assessment |
| SMAGS | Shielded Above-Ground Storage |
| SRECC | Serpent River Region Environmental Committee |
| SRWMF | Solid Radioactive Waste Management Facility |
| SSAC | Canada's State System of Accounting for and Control of Nuclear Materials |
| SSTS | Sealed Source Tracking System |
| TC | Transport Canada |
| The Code | Code of Conduct on the Safety and Security of Radioactive Sources |
| The IAEA | Guidance on the Import and Export of Radioactive Sources Guidance |
| TLD | Thermoluminescent Dosimeter |
| TMA | Tailings Management Area |
| TMF | Tailings Management Facility |
| trCA | Toronto Regional Conservation Authority |
| trIUMF | TriUniversity Meson Facility |
| UMMR | Uranium Mines and Mills Regulations |
| UNENE | University Network of Excellence in Nuclear Engineering |
| URL | Underground Research Laboratory |
| VLLW | Very-Low-Level Radioactive Waste |
| VSLLW | Very-Short-Lived Low-Level Radioactive Waste |
| WAF | Waste Analysis Facility |
| WFOL | Waste Facility Operating Licence |
| WL | Whiteshell Laboratories |
| WMF | Waste Management Facility |
| WR-1 | Whiteshell Reactor-1 |
| WSS | Waste Storage System |
| WTC | Waste Treatment Centre |
| WVRB | Waste Volume Reduction Building |
| WWMF | Western Waste Management Facility |
| XRF | X-Ray Fluorescence |
| ZED-2 | Zero Energy Deuterium-2 |
