Part 21

Part 21 refers to the reporting of defects to the NRC and the industry.

The term "part 21" tends to refer to 2 different perspectives:

• Outgoing: Discovery of a new defect and the need to report.
• Incoming: Outside information (Operating Experience) applies to a site. The potential defect should be evaluated or corrected.

Incoming Part 21 OE

• Part 21 Reports

Outgoing Part 21 Reporting

• Initial ENS: 10 CFR 21.21(d)(3)(i)
• Followup letter: 10 CFR 21.21(d)(3)(ii)

See also

• NEI 14-09, Part 21 Guidance document
• NUREG-0302, Remarks Presented to Discuss Regulation 10 CFR Part 21 for Reporting of Defects and Noncompliance
• Information Notice No. NO: 79-30, Reporting of Defects and Noncompliance, 10 CFR Part 21