MAINTENANCE OPERATIONSLEDGER

The operating record for assets, work, and reliability.

U.S. nuclear power plant licensees within the rule's scope · U.S. federal nuclear regulation

10 CFR 50.65 Requirements for monitoring the effectiveness of maintenance at nuclear power plants

The NRC Maintenance Rule requires monitoring the performance or condition of structures, systems, and components against licensee-established goals in a risk-informed maintenance framework.

What the authority record establishes

The NRC Maintenance Rule requires monitoring the performance or condition of structures, systems, and components against licensee-established goals in a risk-informed maintenance framework.

Binding within scope

The exact official title, issuing body, jurisdiction, version or application record, and linked source define the scope of this page. Readers should not transfer the authority's status to a commercial product or infer transaction-, patient-, system-, site-, or organization-specific applicability from this summary.

Why it matters to this market

It shows why maintenance records, performance criteria, condition monitoring, corrective action, risk, and program review need controlled definitions and evidence in regulated asset environments.

Affected operating stages

  • Scope
  • Risk Significance
  • Performance Criteria
  • Monitoring
  • Corrective Action
  • Assessment

Capabilities to examine

Asset Registry And Hierarchy

Ask how the system or service identifies the controlling source and version, applies customer-specific interpretation, handles exceptions, preserves human judgment, and retains evidence for asset registry and hierarchy.

Preventive Maintenance Scheduling

Ask how the system or service identifies the controlling source and version, applies customer-specific interpretation, handles exceptions, preserves human judgment, and retains evidence for preventive maintenance scheduling.

Inspection And Route Execution

Ask how the system or service identifies the controlling source and version, applies customer-specific interpretation, handles exceptions, preserves human judgment, and retains evidence for inspection and route execution.

Failure Codes And Maintenance History

Ask how the system or service identifies the controlling source and version, applies customer-specific interpretation, handles exceptions, preserves human judgment, and retains evidence for failure codes and maintenance history.

Downtime And Availability Analysis

Ask how the system or service identifies the controlling source and version, applies customer-specific interpretation, handles exceptions, preserves human judgment, and retains evidence for downtime and availability analysis.

Asset Criticality And Risk Ranking

Ask how the system or service identifies the controlling source and version, applies customer-specific interpretation, handles exceptions, preserves human judgment, and retains evidence for asset criticality and risk ranking.

Asset Health And Performance Analytics

Ask how the system or service identifies the controlling source and version, applies customer-specific interpretation, handles exceptions, preserves human judgment, and retains evidence for asset health and performance analytics.

Safety Permits And Compliance Evidence

Ask how the system or service identifies the controlling source and version, applies customer-specific interpretation, handles exceptions, preserves human judgment, and retains evidence for safety permits and compliance evidence.

Document Control And Audit Trails

Ask how the system or service identifies the controlling source and version, applies customer-specific interpretation, handles exceptions, preserves human judgment, and retains evidence for document control and audit trails.

Affected buyer audiences

  • nuclear maintenance
  • engineering
  • regulatory assurance
  • licensees

Implementation questions

  • Which entities, products, populations, transactions, systems, sites, or jurisdictions are actually within scope?
  • What is binding, what is guidance, and what is a technical or consensus standard?
  • Which publication, adoption, effective, application, transition, and enforcement dates differ?
  • Who owns legal, clinical, quality, regulatory, policy, or operational interpretation?
  • How will a source revision affect open work and historical decisions?

Interpretation boundary

The publication does not interpret a licensee's obligations, classify equipment, establish maintenance effectiveness, or provide nuclear engineering advice.