Reactor Safety Research Division

• Thermohydraulic Safety Research Group
• Fuel Safety Research Group
• Severe Accident Research Group
• Risk Analysis Research Group

Materials and Structural Integrity Research Division

• Materials Evaluation Research Group
• Structural Integrity Research Group

Fuel Cycle Safety Research Division

• Fuel Cycle Safety Research Group
• Waste and Environmental Safety Research Group
• Criticality Safety Research Group
• Safeguards Analytical Chemistry Research Group