LESE-NuclearQA VVUQ Validation Roadmap: Current Status, Gaps, and 12-Month Path to Formal Qualification

This document provides a structured assessment of the current validation status of LESE-NuclearQA across three VVUQ axes: Verification, Validation, and Uncertainty Quantification. Current evidence: N=4 RED events across 3 independent US PWR plants, TPR=100%, same unmodified W_ij mapping. Gaps identified and path to formal qualification defined. Regulatory positioning: Class D monitoring tool (IAEA SSG-2), Category 2 AI application (NRC AI Strategic Plan 2023). A 12-month roadmap with 6 phases, deliverables, and gate criteria is provided.