Human Event Repository and Analysis (HERA): The HERA Coding Manual and Quality Assurance (NUREG/CR-6903, Volume 2)

On this page:

Download complete document

Publication Information

Manuscript Completed: October 2006
Date Published: November 2007

Prepared by:
B. Hallbert1, A. Whaley1, R. Boring1, P. McCabe1
Y. Chang2

1Idaho National Laboratory
Battelle Energy Alliance
Idaho Falls, ID 83415

E. Lois, NRC Project Manager

2Office of Nuclear Regulatory Research
U.S. Nuclear Regulatory Commission
Washington, DC 20555-0001

NRC Job Code Y6496

Availability Notice


The U.S. Nuclear Regulatory Commission (NRC), with the support of the Idaho National Laboratory, is developing the Human Event Repository and Analysis (HERA) system to analyze and collect human performance information from commercial nuclear power plants and other related technologies to support regulatory applications in human reliability analysis (HRA) and human factors (HF). Volume 1 of NUREG/CR-6903, dated July 2006, describes the HERA framework, addresses the need for systematic collection of human events, and discusses the various uses of HERA-type data in regulatory applications. To augment that discussion, this volume (Volume 2), describes the HERA data taxonomy, data collection process, and quality control provisions. Specifically, the data taxonomy identifies the types of information to be collected. The HERA data collection process defines an effective, stepwise approach for use in analyzing and collecting human performance information from event reports and simulator studies. Finally, the quality control provisions describe the required qualifications and expertise for data coders, as well as the recommended process for ensuring the quality of HERA data. The software tool and observed human performance insights will be addressed in future volumes of NUREG/CR-6903.

Paperwork Reduction Act Statement

The information collections contained in this document are subject to the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.), which were approved by the Office of Management and Budget, approval numbers 3150-0011 and 3150-0104.

Public Protection Notification

The NRC may not conduct or sponsor, and a person is not required to respond to, a request for information or an information collection requirement unless the requesting document displays a currently valid OMB control number.

Page Last Reviewed/Updated Thursday, March 25, 2021