---
kind: "unit"
title: "10"
title_heading: "Energy"
key: "chI/part21"
level: "part"
label: "Part 21"
heading: "Reporting of Defects and Noncompliance"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/10/chI-part21"
sections_count: 14
---

# Part 21 — Reporting of Defects and Noncompliance

Title 10 C.F.R. — Energy › Chapter I — Nuclear Regulatory Commission

## Sections

- [§21.1. Purpose.](/cfr/10/21.1.md)
- [§21.2. Scope.](/cfr/10/21.2.md)
- [§21.3. Definitions.](/cfr/10/21.3.md)
- [§21.4. Interpretations.](/cfr/10/21.4.md)
- [§21.5. Communications.](/cfr/10/21.5.md)
- [§21.6. Posting requirements.](/cfr/10/21.6.md)
- [§21.7. Exemptions.](/cfr/10/21.7.md)
- [§21.8. Information collection requirements: OMB approval.](/cfr/10/21.8.md)
- [§21.21. Notification of failure to comply or existence of a defect and its evaluation.](/cfr/10/21.21.md)
- [§21.31. Procurement documents.](/cfr/10/21.31.md)
- [§21.41. Inspections.](/cfr/10/21.41.md)
- [§21.51. Maintenance and inspection of records.](/cfr/10/21.51.md)
- [§21.61. Failure to notify.](/cfr/10/21.61.md)
- [§21.62. Criminal penalties.](/cfr/10/21.62.md)