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Solution 10 CFR 50.59

From proposed change
to a cited 50.59 draft.

Take a proposed change through applicability, screening and, when it screens in, the eight evaluation criteria, with the UFSAR and Technical Specifications beside every answer.

For engineering and licensing. The licensee's preparer and reviewer keeps the decision.

The problem

The change is defined. The supporting basis is scattered.

A disposition brings together the change description, the design and licensing basis, the site procedure and prior evaluations. Rebuilding that record takes time before the preparer can start the evaluation itself.

  • The governing passages sit across several documents and revisions.
  • Prior evaluations take time to find and compare.
  • Reviewers need a visible basis for every draft answer.
The workflow

How the work gets done.

Nuclearn Regulatory AI works the record stage by stage. A separate agent challenges each answer against the licensing basis before the report is drafted in Word for the licensing engineer.

  1. Describe the activityGive the proposed change a title and description.
  2. ApplicabilityDoes 10 CFR 50.59 apply, with the basis shown.
  3. ScreeningThe screening questions, answered against the design basis.
  4. EvaluationWhen it screens in, one brief for each of the eight criteria.
  5. ChallengeAn independent agent checks each answer and every citation.
  6. Report and verifyThe report drafted in Word, each claim checked again.

What goes in

  • The proposed change
  • UFSAR and Technical Specifications
  • Design basis and prior 50.59 evaluations, if you add them
  • Procedures and licensing correspondence, if you add them

What comes out

  • A cited 50.59 draft in Word, with the record behind each answer.
  • Regulatory AI doesn't replace engineering judgment or the licensee's review. Qualified people review and approve every determination.
Published workflow story

Putting the basis beside the 50.59 draft.

The situation
Nuclearn's published 50.59 feature story describes the research and documentation work behind a change review.
The work
Source retrieval and draft preparation happen in the same process, with the supporting records open for the engineer.
The result
A draft and a traceable basis that the preparer and reviewer evaluate together.

Published by Nuclearn. It describes the workflow, not a review time or a regulatory outcome.

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Bring your own 50.59 disposition.

We'll walk through the workflow on public or demo data, and how it would fit your site's process.

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