SECTION 830.3
830.3 Definitions.
§ 830.3 Definitions.
(a) The following definitions apply to this part:
Administrative controls means the provisions relating toorganization and management, procedures, recordkeeping, assessment,and reporting necessary to ensure safe operation of a facility.
Bases appendix means an appendix that describes the basisof the limits and other requirements in technical safetyrequirements.
Critical assembly means special nuclear devices designedand used to sustain nuclear reactions, which may be subject tofrequent core and lattice configuration change and which frequentlymay be used as mockups of reactor configurations.
Criticality means the condition in which a nuclearfission chain reaction becomes self-sustaining.
Design features means the design features of a nuclearfacility specified in the technical safety requirements that, ifaltered or modified, would have a significant effect on safeoperation.
Document means recorded information that describes,specifies, reports, certifies, requires, or provides data orresults.
Documented safety analysis means a documented analysis ofthe extent to which a nuclear facility can be operated safely withrespect to workers, the public, and the environment, including adescription of the conditions, safe boundaries, and hazard controlsthat provide the basis for ensuring safety.
Environmental restoration activities means theprocess(es) by which contaminated sites and facilities areidentified and characterized and by which contamination iscontained, treated, or removed and disposed.
Fissionable materials means a nuclide capable ofsustaining a neutron-induced chain reaction (e.g.,uranium-233, uranium-235, plutonium-238, plutonium-239,plutonium-241, neptunium-237, americium-241, and curium-244).
Graded approach means the process of ensuring that thelevel of analysis, documentation, and actions used to comply with arequirement in this part are commensurate with:
(1) The relative importance to safety, safeguards, andsecurity;
(2) The magnitude of any hazard involved;
(3) The life cycle stage of a facility;
(4) The programmatic mission of a facility;
(5) The particular characteristics of a facility;
(6) The relative importance of radiological and nonradiologicalhazards; and
(7) Any other relevant factor.
Hazard means a source of danger (i.e., material,energy source, or operation) with the potential to cause illness,injury, or death to a person or damage to a facility or to theenvironment (without regard to the likelihood or credibility ofaccident scenarios or consequence mitigation).
Hazard Category 1, 2, and 3 DOE nuclear facilities meansnuclear facilities that meet the criteria for their respectivehazard category consistent with the provisions of DOE-STD-1027-92,Change Notice 1. Hazard Category 1, 2, and 3 DOE nuclear facilitiesare required to have safety bases established in accordance withSubpart B of this part. Hazard categories are based on theirradioactive material inventories and the potential consequences tothe public, workers, and the environment. Hazard Category 1represents the highest potential consequence and Hazard Category 3represents the lowest potential consequence of the facilitiesrequired to establish safety bases.
Hazard controls means measures to eliminate, limit, ormitigate hazards to workers, the public, or the environment,including:
(1) Physical, design, structural, and engineering features;
(2) Safety structures, systems, and components;
(3) Safety management programs;
(4) Technical safety requirements; and
(5) Other controls necessary to provide adequate protection fromhazards.
Item is an all-inclusive term used in place of any of thefollowing: Appurtenance, assembly, component, equipment, material,module, part, product, structure, subassembly, subsystem, system,unit, or support systems.
Limiting conditions for operation means the limits thatrepresent the lowest functional capability or performance level ofsafety structures, systems, and components required for safeoperations.
Limiting control settings means the settings on safetysystems that control process variables to prevent exceeding asafety limit.
Low-level residual fixed radioactivity means theremaining radioactivity following reasonable efforts to removeradioactive systems, components, and stored materials. Theremaining radioactivity is composed of surface contamination thatis fixed following chemical cleaning or some similar process; acomponent of surface contamination that can be picked up by smears;or activated materials within structures. The radioactivity can becharacterized as low-level if the smearable radioactivity is lessthan the values defined for removable contamination by 10 CFR part835, Appendix D, Surface Contamination Values, and the hazardanalysis results show that no credible accident scenario or workpractices would release the remaining fixed radioactivity oractivation components at levels that would prudently require theuse of active safety systems, structures, or components to preventor mitigate a release of radioactive materials.
Major modification means a modification to a DOE nuclearfacility that substantially changes the existing safety basis forthe facility.
New Hazard Category 1, 2, and 3 DOE nuclear facilitymeans a Hazard Category 1, 2, or 3 DOE nuclear facility that is indesign or under construction that does not yet have a DOE approvedsafety basis.
Nonreactor nuclear facility means those facilities,activities or operations that involve, or will involve, radioactiveand/or fissionable materials in such form and quantity that anuclear or a nuclear explosive hazard potentially exists toworkers, the public, or the environment, but does not includeaccelerators and their operations and does not include activitiesinvolving only incidental use and generation of radioactivematerials or radiation such as check and calibration sources, useof radioactive sources in research and experimental and analyticallaboratory activities, electron microscopes, and X-raymachines.
Nuclear facility means a reactor or a nonreactor nuclearfacility where an activity is conducted for or on behalf of DOE andincludes any related area, structure, facility, or activity to theextent necessary to ensure proper implementation of therequirements established by this Part.
Operating limits means those limits required to ensurethe safe operation of a nuclear facility, including limitingcontrol settings and limiting conditions for operation.
Preliminary documented safety analysis meansdocumentation prepared in connection with the design andconstruction of a new Hazard Category 1, 2, or 3 DOE nuclearfacility or a major modification to an existing Hazard Category 1,2, or 3 DOE nuclear facility that provides a reasonable basis forthe preliminary conclusion that the nuclear facility can beoperated safely through the consideration of factors such as:
(1) The nuclear safety design criteria to be satisfied;
(2) A safety analysis that derives aspects of design that arenecessary to satisfy the nuclear safety design criteria; and
(3) An initial listing of the safety management programs thatmust be developed to address operational safety considerations.
Process means a series of actions that achieves an end orresult.
Quality means the condition achieved when an item,service, or process meets or exceeds the user's requirements andexpectations.
Quality assurance means all those actions that provideconfidence that quality is achieved.
Quality Assurance Program (QAP) means the overall programor management system established to assign responsibilities andauthorities, define policies and requirements, and provide for theperformance and assessment of work.
Reactor means any apparatus that is designed or used tosustain nuclear chain reactions in a controlled manner such asresearch, test, and power reactors, and critical and pulsedassemblies and any assembly that is designed to perform subcriticalexperiments that could potentially reach criticality; and, unlessmodified by words such as containment, vessel, or core, refers tothe entire facility, including the housing, equipment andassociated areas devoted to the operation and maintenance of one ormore reactor cores.
Record means a completed document or other media thatprovides objective evidence of an item, service, or process.
Safety basis means the documented safety analysis andhazard controls that provide reasonable assurance that a DOEnuclear facility can be operated safely in a manner that adequatelyprotects workers, the public, and the environment.
Safety class structures, systems, and components meansthe structures, systems, or components, including portions ofprocess systems, whose preventive or mitigative function isnecessary to limit radioactive hazardous material exposure to thepublic, as determined from safety analyses.
Safety evaluation report means the report prepared by DOEto document:
(1) The sufficiency of the documented safety analysis for aHazard Category 1, 2, or 3 DOE nuclear facility;
(2) The extent to which a contractor has satisfied therequirements of Subpart B of this part; and
(3) The basis for approval by DOE of the safety basis for thefacility, including any conditions for approval.
Safety limits means the limits on process variablesassociated with those safety class physical barriers, generallypassive, that are necessary for the intended facility function andthat are required to guard against the uncontrolled release ofradioactive materials.
Safety management program means a program designed toensure a facility is operated in a manner that adequately protectsworkers, the public, and the environment by covering a topic suchas: Quality assurance; maintenance of safety systems; personneltraining; conduct of operations; inadvertent criticalityprotection; emergency preparedness; fire protection; wastemanagement; or radiological protection of workers, the public, andthe environment.
Safety management system means an integrated safetymanagement system established consistent with 48 CFR 970.5223-1,Integration of environment, safety, and health into workplanning and execution.
Safety significant structures, systems, and componentsmeans the structures, systems, and components which are notdesignated as safety class structures, systems, and components, butwhose preventive or mitigative function is a major contributor todefense in depth and/or worker safety as determined from safetyanalyses.
Safety structures, systems, and components means bothsafety class structures, systems, and components and safetysignificant structures, systems, and components.
Service means the performance of work, such as design,manufacturing, construction, fabrication, assembly,decontamination, environmental restoration, waste management,laboratory sample analyses, inspection, nondestructiveexamination/testing, environmental qualification, equipmentqualification, repair, installation, or the like.
Surveillance requirements means requirements relating totest, calibration, or inspection to ensure that the necessaryoperability and quality of safety structures, systems, andcomponents and their support systems required for safe operationsare maintained, that facility operation is within safety limits,and that limiting control settings and limiting conditions foroperation are met.
Technical safety requirements (TSRs) means the limits,controls, and related actions that establish the specificparameters and requisite actions for the safe operation of anuclear facility and include, as appropriate for the work and thehazards identified in the documented safety analysis for thefacility: Safety limits, operating limits, surveillancerequirements, administrative and management controls, use andapplication provisions, and design features, as well as a basesappendix.
Unreviewed Safety Question (USQ) means a situationwhere:
(1) The probability of the occurrence or the consequences of anaccident or the malfunction of equipment important to safetypreviously evaluated in the documented safety analysis could beincreased;
(2) The possibility of an accident or malfunction of a differenttype than any evaluated previously in the documented safetyanalysis could be created; or
(3) The documented safety analysis may not be bounding or may beotherwise inadequate.
Unreviewed Safety Question process means the mechanismfor keeping a safety basis current by reviewing potentialunreviewed safety questions, reporting unreviewed safety questionsto DOE, and obtaining approval from DOE prior to taking any actionthat involves an unreviewed safety question.
Use and application provisions means the basicinstructions for applying technical safety requirements.
(b) Terms defined in the Act or in 10 CFR part 820 and notdefined in this section of the rule are to be used consistent withthe meanings given in the Act or in 10 CFR part 820.
