---
kind: "section"
citation: "10 C.F.R. § 830.203"
title: "10"
number: "830.203"
heading: "Unreviewed safety question process."
url: "https://uscodex.org/cfr/10/830.203"
---

# §830.203. Unreviewed safety question process.

- (a) The contractor responsible for a Hazard Category 1, 2, or 3 DOE nuclear facility must establish, implement, and take actions consistent with a DOE-approved USQ procedure that meets the requirements of this section.
- (b) The contractor responsible for a new Hazard Category 1, 2, or 3 DOE nuclear facility must submit for DOE approval a procedure for its USQ process on a schedule that allows DOE approval in a safety evaluation report issued pursuant to [§ 830](/cfr/10/830.md). 207(a) of this part.
- (c) The contractor responsible for a Hazard Category 1, 2, or 3 DOE nuclear facility must implement the DOE-approved USQ procedure in situations where there is a:
  - (1) Temporary or permanent change in the facility as described in the existing documented safety analysis;
  - (2) Temporary or permanent change in the procedures as described in the existing documented safety analysis;
  - (3) Test or experiment not described in the existing documented safety analysis; or
  - (4) Potential inadequacy of the documented safety analysis because the analysis potentially may not be bounding or may be otherwise inadequate.
- (d) A contractor responsible for a Hazard Category 1, 2, or 3 DOE nuclear facility must obtain DOE approval prior to taking any action determined to involve a USQ.
- (e) The contractor responsible for a Hazard Category 1, 2, or 3 DOE nuclear facility must annually provide to DOE a summary of the USQ determinations performed since the prior submittal.
- (f) If a contractor responsible for a Hazard Category 1, 2, or 3 DOE nuclear facility discovers or is made aware of a potential inadequacy of the documented safety analysis, it must:
  - (1) Take action, as appropriate, to place or maintain the facility in a safe condition until an evaluation of the safety of the situation is completed;
  - (2) Notify DOE of the situation;
  - (3) Perform a USQ determination and notify DOE promptly of the results; and
  - (4) Submit the evaluation of the safety of the situation to DOE prior to removing any operational restrictions initiated to meet [paragraph (f)(1)](#f-1) of this section.

## Notes

### Authority

Authority: 42 U.S.C. 2201; 42 U.S.C. 7101 et seq.; and 50 U.S.C. 2401 et seq.

### Source

Source: 85 FR 66205, Oct. 19, 2020, unless otherwise noted.