Comment on FR Doc # 2026-08550, NRC-2025-0379-0011, from X-energy

Summary: X Energy, LLC, a developer of pebble-bed, high-temperature gas-cooled reactors, supports the NRC's proposed Part 57 rule to establish a risk-informed regulatory framework for low-risk reactors. They advocate for specific refinements to the rule, including more flexible dose criteria, the use of existing guidance for change evaluations, and consistent definitions for quality assurance and reactor states.