United States Nuclear Regulatory Commission - Protecting People and the Environment

ROP Update Schedule

The Nuclear Regulatory Commission provides oversight to the operating reactors within the United States. The Agency provides periodic updates in several areas: Plant Summaries, Performance Indicators, Inspection Findings, Inspection Reports, Action Matrix, Assessment Letters, Cross Cutting Issues, and ROP Effectiveness Reports. The respective update frequency is delineated in the table below. Nominally, quarterly reports are updated on the website in January, April, August, and November; semi-annual reports are updated on the website in April and August; and annual reports are in April. The schedule is as follows:

Product Update Periodicity
Plant Summaries Quarterly
Performance Indicators Quarterly
Inspection Findings Quarterly
Inspection Reports Quarterly*
Action Matrix Semi-Annually
Assessment Letters Semi-Annually
Cross Cutting Issues Semi-Annually
ROP Effectiveness Reports Annual

*Routine inspections are updated on a quarterly basis. Other inspections (such as supplemental and team inspections) are updated per their respective inspection procedure.

Annual Assessment Letters and Mid-Cycle Letters are issued for all plants after the completion of the fourth calendar quarter (4Q) and second calendar quarter (2Q) respectively and include inspection plans. Assessment Follow-up Letters are only issued after the first quarter (1Q) and third quarter (3Q) for those plants that crossed performance thresholds. Assessment letters will typically be posted to the web approximately eight weeks after the completion of a quarter.

NOTE: During the mid year of 2001, the yearly ROP cycles were changed to align with the calendar year. As a result, all letters shifted back by one quarter. For example, the Annual Assessment Letters shifted from the first quarter (1Q) of a given year to the fourth quarter (4Q) of the previous year, and all other letters shifted accordingly.

  • 2004q4 = Annual Assessment Letters for All Plants (with Inspection Plan)
  • 2004q3 = Assessment Follow-up Letters for Plants that Crossed Thresholds
  • 2004q2 = Mid-Cycle Letters for All Plants (with Inspection Plan)
  • 2004q1 = Assessment Follow-up Letters for Plants that Crossed Thresholds
  • 2003q4 = Annual Assessment Letters for All Plants (with Inspection Plan)
  • 2003q3 = Assessment Follow-up Letters for Plants that Crossed Thresholds
  • 2003q2 = Mid-Cycle Letters for All Plants (with Inspection Plan)
  • 2003q1 = Assessment Follow-up Letters for Plants that Crossed Thresholds
  • 2002q4 = Annual Assessment Letters for All Plants (with Inspection Plan)
  • 2002q3 = Assessment Follow-up Letters for Plants that Crossed Thresholds
  • 2002q2 = Mid-Cycle Letters for All Plants (with Inspection Plan)
  • 2002q1 = Assessment Follow-up Letters for Plants that Crossed Thresholds
  • 2001q4 = Annual Assessment Letters for All Plants (with Inspection Plan)
  • 2001q3 = Assessment Follow-up Letters for Plants that Crossed Thresholds
  • 2001q2 = Assessment Follow-up Letters for Plants that Crossed Thresholds
  • 2001q1 = Annual Assessment Letters for All Plants (with Inspection Plan)
  • 2000q4 = Assessment Follow-up Letters for Plants that Crossed Thresholds
  • 2000q3 = Mid-Cycle Letters for All Plants (with Inspection Plan)
  • 2000q2 = Assessment Follow-up Letters for Plants that Crossed Thresholds
  • 2000q1 = Annual Assessment Letters for All Pilot Plants (with Inspection Plan), Final Plant Performance Review Letters for All Other Plants
  • 1999q4 = Assessment Follow-up Letters for Pilot Plants that Crossed Thresholds
  • 1999q3 = Mid-Cycle Letters for All Pilot Plants (with Inspection Plan)

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Page Last Reviewed/Updated Friday, April 20, 2018