Requirements Traceability Matrix

Making Cybersecurity Requirements

NEI 08-09 and NRC-approved Cybersecurity Plans ( CSPs ) are foundational to the nuclear sector’s cyber defense. But with hundreds of overlapping requirements, dispersed clarifications, and cross-domain dependencies, they are also notoriously difficult to interpret, track, and implement.

InfraShield’s Requirements Traceability Matrix (RTM) Services bring structure to this complexity. We help nuclear facilities translate regulatory language into operational clarity—giving you a defensible, auditable system for tracking every requirement, every procedure, and every technical implementation.

Why Traceability Matters

Without precise traceability, even well-intentioned cyber programs can fall short. Facilities often:

An effective RTM is more than a spreadsheet—it’s a living tool that connects regulatory intent with site execution.

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Our Breakdown

InfraShield brings unmatched regulatory insight and field-proven methodology to the development of traceability frameworks. Our process maps over 1,600 regulatory requirements, yielding on average 56,000+ relationships between site procedures and technical controls.

Requirements Mapping:

  • Decomposition of NEI 08-09, CSP, NIST, and internal policies
  • Clarification of duplicative or scattered requirement language
  • Mapping of requirements to specific site procedures and technical implementations

Gap Analysis & Impact Visibility:

  • Identification of unmet or partially fulfilled requirements
  • Highlighting of requirement interdependencies across domains
  • Visibility into how changes in one system (e.g., access controls) impact others

System-Level Validation:

  • Sample RTM application to key plant systems (e.g., RPS, PCS/PPC, Physical Security, MET tower)
  • Walkdowns, interviews, and artifact reviews to verify mappings in the field
  • Analysis of previous findings, inspections, and CAP data

Executive Summary & Reporting:

  • High-level overview of issue types, severity, and likely root causes
  • Recommendations for program improvement and remediation
  • Integration guidance for findings into the site’s CAP

Deliverables That Drive Program Maturity

The RTM Includes:

  • A full list of applicable regulatory and site-specific requirements
  • Cross-references to internal policies, procedures, and control implementations
  • Identification of gaps, dependencies, and risk areas

The Executive Summary Report Provides:

  • Severity-ranked issue breakdown
  • Root cause insights and improvement suggestions
  • Estimated remediation costs and prioritization guidance
  • Recommendations for CAP integration

Regulatory Insight. Operational Reality.

InfraShield’s RTM services are powered by people who helped shape the regulatory frameworks themselves. Our team includes:

Former NRC reviewers and editors of NEI 08-09

Engineers who understand both the spirit and letter of regulatory compliance

Cyber-physical professionals who map requirements not just on paper, but in practice

We don’t just deliver documentation—we deliver tools that help security, compliance, and operations teams work in sync.

Why
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What Comes Next?

InfraShield’s RTM service gives you more than compliance—it gives you confidence. With traceability mapped, gaps identified, and impact understood, your cybersecurity program becomes measurable, defensible, and scalable.

Ready to Bring Clarity to Your Cyber Requirements?

Let’s work together to build a traceability framework that reduces risk, simplifies inspections, and strengthens your program from the inside out.

Request an RTM Consultation or contact our team for any questions or concerns.

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