Policies, Procedures, and Guidelines

A variety of policies, procedures, and guidelines are used to complete dose reconstructions. They are developed and updated as necessary. Links to the documents are listed below in alphabetical order. The document number, a brief description of the document, and the date the document was approved or revised is provided, when available.

Do you know the title of the policy, procedure, or guideline you are looking for? If you know the title, click on the letter below that corresponds to the first letter of the policy, procedure, or guideline’s title to move where the link and information for the document you are looking for is located on this page.


  • Alternative Dissolution Models for Insoluble Pu-238 pdf icon[823 KB (52 pages)]

    Document Number: DCAS-RPT-005 Rev 01

    Revised: August 17, 2018

    About this Document: Consolidates in one document information about insoluble Pu-238 that is relevant to dose reconstruction at several sites.

    Revision Includes: Removes a typos (SRS) in section A.5.1. Adds text in section A.2 to explain why Mound-13 chosen as representative.









  • Methods for Radiation Dose Reconstruction pdf icon[129 KB (23 pages)]

    Document Number: Final Rule: 42 CFR Part 82

    Effective Date: May 2, 2002

    About this Document: The document outlines the methods for estimating the dose levels of ionizing radiation incurred by workers in the performance of duty for nuclear weapons production programs of the Department of Energy and its predecessor agencies.

  • Multiple Imputation Applied to Bioassay Co-Exposure Models pdf icon[733 KB (20 pages)]

    Document Number: ORAUT-RPRT-0096, Rev. 01

    Revised: June 11, 2021

    About this Document: Revision initiated to incorporate experience gained from applying multiple imputation to recent co-exposure models. Only the new multiple imputation methods are discussed, whereas, Rev. 00 included comparisons of the then current statistical methods for dealing with censored data with the new multiple imputation methods. In addition, Rev. 01 includes statistical methods (like the coworker R package) that were used for the first time in the INL co-exposure statistical analysis. Incorporates formal internal and NIOSH review comments.


  • Neutron Dose from Highly Enriched Uranium pdf icon[498 KB (24 pages)]

    Document Number: ORAUT-RPRT-0060 Rev. 00

    Effective Date: March 28, 2019

    About this Document: New document initiated for evaluation of neutron dose from highly enriched uranium at the Oak Ridge Gaseous Diffusion Plant (K-25), Paducah Gaseous Diffusion Plant, Portsmouth Gaseous Diffusion Plant, and Y-12 Plant. Incorporates formal internal and NIOSH review comments.


  • Occupational Medical X-Ray Dose Reconstruction for DOE Sites pdf icon[215 KB (12 pages)]

    Document Number: ORAUT-PROC-0061 Rev. 4

    Revised: June 6, 2017

    About this Document: Provides direction for assignment of organ dose from medical X-ray exams based on TBD information. Incorporates formal internal and NIOSH review comments.

    Revision Includes: Revision initiated to ensure consistency with ORAUT-OTIB-0006. Appendix C on the calculation of skin dose deleted as duplicate of ORAUT-OTIB-0006 content. Incorporates formal internal review comments. Constitutes a total rewrite of the document.




  • Technical Documents Used in Dose Reconstruction

    About these Documents: Technical documents are general working documents that provide historic background information and guidance to assist in the preparation of dose reconstructions at particular sites or categories of sites. They will be revised in the event additional relevant information is obtained about the affected site(s). These documents may be used to assist NIOSH staff in the completion of the individual work required for each dose reconstruction.

  • Two-Count Filter Method for Measurement of Thoron Progeny in Air, Rev. 00 pdf icon[501 KB (14 pages)]

    Document Number: ORAUT-RPRT-0084, Rev. 00

    Approved: April 27, 2019

    About this Document: Describes a two-count filter method for measurement of thoron progeny in air.



  • Worker Outreach Program pdf icon[1 MB (32 pages)]

    Document Number: DCAS-PR-012 Rev-01

    Approved: December 14, 2012

    About this Document: Changes address actions from the Outreach Working Group and includes discussion of minutes and notes, announcements at the beginning of a meeting, processing of meeting minutes, action item identification and processing, etc.

Advisory Board on Radiation and Worker Health Comments on Policy, Procedure, and Guidance Documents

The Advisory Board conducts technical reviews of various DCAS policy, procedure, and guidance documents that relate to dose reconstruction. The Board’s technical support contractor assists in the review process. The purpose of the reviews is to assess the scientific and technical quality of the methods used in dose reconstruction. They also help identify any deficiencies that could have a negative effect on the results or the dose reconstruction process. These reviews can be found on the Advisory Board: Reports from the Technical Support Contractor page of our website.

When the reviews are complete and all issues have been resolved, the Board prepares a brief summary of the resolutions. The summaries help the public understand the results of the technical reviews. These summaries can be found on the Advisory Board: Technical Review Summaries from the Technical Support Contractor page.

Document Archive for Policy, Procedure, and Guidance Documents

  • Draft Criteria for the Evaluation and Use of Coworker Datasets, Rev. 4.1.1 pdf icon[128 KB (11 pages)]
    Revised: July 6, 2015

    About this Document: Implementation guide that provides guidance for the evaluation of personnel monitoring data used in the reconstruction of doses to unmonitored workers who are covered under EEOICPA. The criteria are to be applied to the development of new coworker models, as well as retrospectively in the review of existing coworker models.

    Please note: this was replaced by DCAS-IG-006 Rev-00: Criteria for the Evaluation and Use of Co-Exposure Datasetspdf icon.

  • NIOSH Policy Statement: Management of Conflict or Bias in the Radiation Dose Reconstruction Program pdf icon[172 KB (23 pages)]
    Revised: June 24, 2009

    About this Document: This document is a Statement of Policy by NIOSH about potential or actual conflicts or biases of those persons or entities carrying out responsibilities for the NIOSH Dose Reconstruction Program.

  • Occupational Medical X-Ray Dose Reconstruction for DOE Sites pdf icon[189 KB (22 pages)]

    Document Number: ORAUT-PROC-0061 Rev. 3

    Revised: March 3, 2010

    About this Document: Provides direction for assignment of organ dose from medical X-ray exams based on TBD information. Incorporates formal internal and NIOSH review comments.

    Revision Includes: Provides direction for assignment of organ dose from medical X-ray exams based on TBD information. This latest revision removes the LAT chest doses for Ames Laboratory in Notes to Table A-1 which are now included in a revised Ames Site Profile; to add guidance for skin dose for PA and LAT chest for post 1970; to better define dose to various areas of skin from PFG, PA and LAT chest pre-1970 and lumbar spine procedures; to remove Table A-1, the quick reference table, and Table B-1, the records availability table; to move the responsibilities of the “subject expert – external dosimetry” to the “dose reconstruction group managers.” Previous revisions that were incorporated into the document: (1) Includes additional sites with approved TBDs, new guidance on X-rays for locations of the skin, and additional X-ray procedures (2) Updates Attachment C to include approved Request for Direction or Operational Change for X-Ray dose assignment to the face and to include updates based on current TBD revisions. Includes recently approved TBDs, change column headings, and alignment of x-ray procedures to align with new headings in Attachment A.

  • Occupational Onsite Ambient Dose Reconstruction for DOE Sites–CANCELED pdf icon[304 KB (26 pages)]

    Document Number: ORAUT-PROC-0060 Rev. 1

    Revised: June 28, 2006

    About this Document: Provides direction for external onsite ambient dose reconstruction for DOE sites. Revised to include additional DOE sites.

    Note: This document was canceled. The information contained in this document can now be found in ORAUT-OTIB-0088: External Dose Reconstruction.

  • Performing and Reporting Dose Reconstructions–CANCELED pdf icon[86 KB (21 pages)]

    Document Number: OCAS-PR-003, Rev. 0

    Approved: September 24, 2002

    About this Document: Establishes program guidelines for performing dose reconstruction.

Submitting Comments on Policies, Procedures, and Guidelines

If you have questions about the documents listed on this page, please contact us at:

Department of Health and Human Services
National Institute for Occupational Safety and Health (NIOSH)
Division of Compensation Analysis and Support (DCAS)
Robert A. Taft Laboratories, MS-C45
1090 Tusculum Avenue
Cincinnati, OH 45226

Phone: 513-533-6800 (direct) or toll-free: 1-877-222-7570
Fax: 513-533-6826
E-mail: dcas@cdc.gov

Page last reviewed: June 15, 2021