NRC Part 53
NRC 10 CFR Part 53 proposes a risk-informed licensing framework for advanced non-light-water reactors, emphasizing performance-based regulations.
Finalized in 2024, Part 53 allows technology-inclusive licensing for SMRs and microreactors, using risk metrics over prescriptive rules. It supports HALEU-fueled designs and factory fabrication. Complements Part 50/52 for LWRs.
Why it matters now
Part 53 rulemaking enables 2025-2026 advanced reactor deployments for data centers, addressing HALEU and SMR licensing bottlenecks.