Probabilistic Risk Assessment

Westinghouse Experience: PRA Models

Westinghouse Experience: Applications

  • Operations
    • NRC Significance Determination Process (SDP)
    • Mitigation System Performance Indicators (MSPI)
    • Reactor Oversight Process (ROP)
    • Maintenance Rule (10 CFR 50.65)
  • Risk-Informed Applications
  • Risk-Informed Tech Specs
    • RITS Initiative 2 - Risk-Informed Missed Surveillances
    • RITS Initiative 3 - Flexible Mode Restraints (LCO 3.0.4)
    • RITS Initiative 4a: Changes to Individual TS via Regulatory Guide 1.177
    • Initiative 4b:  Risk-Managed Tech Specs using MR (a)(4) backstop using Regulatory Guide 1.174
    • Initiative 5b:  Risk-Informed Surveillance Test Intervals
  • Risk-Informed Special Treatment Requirements for SSCs - 10 CFR 50.69