Andriy Oreshyn
Nuclear Oversight & AI Governance
_{Oversight • Compliance • Governance • Intelligent Systems}

Independent Insight in Safety-Critical EnvironmentsI work in nuclear oversight and governance, with a focus on assurance, compliance, and organizational effectiveness in safety-critical environments.
With over 20 years of experience within Ontario Power Generation’s Nuclear Oversight function, “my work examines the intersection of safety, regulatory compliance, and emerging AI governance considerations.
My professional focus is on assessing governance arrangements, identifying systemic gaps, and examining how organizations make decisions, manage risk, and sustain performance in complex systems.- CSA N286 and WANO PO&C governance alignment
- Program and project oversight effectiveness
- AI governance considerations in safety-critical environments

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About Me
—I’ve spent the last two decades inside Ontario Power Generation, working in one of the most demanding oversight environments in the world — nuclear. What started as a technical role gradually evolved into a focus on governance, clarity, and decision-making in safety-critical systems.My work sits at the intersection of:
- safety
- compliance
- human performance
- intelligent systemsOver the years, I’ve led and contributed to major oversight reviews, governance assessments, program documentation evaluations, and safety-critical examinations across complex projects and operations. My focus has been on identifying systemic risk, examining how information flows through organizations, and understanding how decisions are made under conditions of uncertainty and complexity.More recently, my analytical focus has expanded to AI governance in safety-critical environments — examining how intelligent systems interact with existing assurance, compliance, and management frameworks, and what new governance considerations they introduce.
Outside of day-to-day work, I’m interested in how complex systems fail or succeed over time, how organizations learn, and how governance and safety cultures are sustained in high-consequence environments.

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Articles
—AI in Nuclear — Stop Coding, Start Governing
AI in nuclear must begin with governance, not code. Safety, controls, and risk frameworks must come first.
Read on LinkedIn →---Vendor Qualification vs. Field Reality — Why Oversight Breaks
Why suppliers pass audits but fail on the ground — and the oversight blind spots that allow it.
Read on LinkedIn →---ISO 19443 — The Nuclear Quality Standard No One Talks About
Every SMR developer should understand ISO 19443 — but few truly do or implement it correctly.
Read on LinkedIn →---Silent Drift — How Configuration Management Undermines Nuclear Safety
Configuration drift isn’t dramatic — it’s silent. It slowly erodes nuclear safety margins until failure becomes inevitable.
Read on LinkedIn →---When Configuration Control Breaks Down — Corrective Action Lessons
Behind every major nuclear issue is the same root cause: failed configuration control. Here are the lessons oversight keeps relearning.
Read on LinkedIn →---Electricity Is Becoming the New Capital — Most Governments Aren’t Ready
Electricity is becoming the defining capital asset of the 21st century — but most governments still treat it like a commodity.
Read on LinkedIn →

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