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Federal Guidance
Risk Assessment and Federal Guidance Programs:  

Technical Reports

Federal Guidance

Federal guidance technical reports provide current scientific and technical information for radiation dose and risk assessment. They are used by federal and state agencies in developing radiation protection regulations and standards.

Report No. Technical Documents
13 Cancer Risk Coefficients for Environmental Exposure to Radionuclides: Updates and Supplements
  • Acute Dose Calculator (2006)
  • Update: CD Supplement (Revised 2002)
  • Final - Cancer Risk Coefficients for Environmental Exposure to Radionuclides (1999)
12 External Exposure to Radionuclides in Air, Water, and Soil
11 Limiting Values of Radionuclide Intake and Air Concentration and Dose Conversion Factors for Inhalation, Submersion, and Ingestion
10 The Radioactivity Concentration Guides
  9 Radiation Protection Guidance for Diagnostic X-rays
   Background Report: Recommendations on Guidance for Diagnostic X-Ray Studies in Federal Health Care Facilities
Federal Radiation Council Reports
  8 Guidance for the Control of Radiation Hazards in Uranium Mining
  7 Background Material for the Development of Radiation Protection Standards Protective Action Guides for Strontium-89, Strontium-90, and Cesium-137
  6 Revised Fallout Estimates for 1964-1965 and Verification of the 1963 Predictions
  5 Background Material for the Development of Radiation Protection Standards
  4 Estimates and Evaluation of Fallout in the United States from Nuclear Weapons Testing Conducted Through 1962
  3 Health Implications of Fallout from Nuclear Weapons Testing Through 1961
  2 Background Material for the Development of Radiation Protection Standards
  1 Background Material for the Development of Radiation Protection Standards

You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.


Report No. 13, Cancer Risk Coefficients for Environmental Exposure to Radionuclide: Updates and Supplements

Final-Federal Guidance Report No. 13

Cancer Risk Coefficients for Environmental Exposure to Radionuclides [EPA 402-R-99-001] September, 1999
This report provides methods and data for estimating risks due to both internal and external radionuclide exposures. It includes coefficients for assessing cancer risks from environmental exposure to about 800 radionuclides. Both mortality and incidence risk coefficients are tabulated for inhalation, food and water ingestion, submersion in air and exposure to uniform soil concentrations. The age-averaged coefficients consider age-specific intake rates, dose modeling, and risk modeling. The information presented in this report is for use in assessing risks from radionuclide exposure in a variety of applications ranging from environmental impact analyses of specific sites to the general analyses that support rulemaking.


Ordering CDs

CD of the Interactive Viewer for Risk and Dose Coefficients

Phone: 202.343.9367
FAX 202.343.2304
U.S. Mail Center for Radiation Information and Outreach
U.S. Environmental Protection Agency
1200 Pennsylvania Avenue, NW
Mail Code 6608J
Washington, DC 20460-0001
E-Mail radiation.information@epa.gov

Update: CD Supplement (April, 2002) *

Interactive Viewer for Risk and Dose Coefficients (Installs on user's hard drive.) (All files are in PDF format.)

*The August 2000 CD Supplement contains errors in the viewer, and should be replaced with the April 2002 Revision.

Special FGR 13 Software

DCPAK3.02
Keith F. Eckerman and Richard W. Leggett
Oak Ridge National Laboratory

The software and data package DCFPAK (Dose Coefficient File Package) allows electronic access to nuclear decay data and dose and risk coefficients for exposure to radionuclides. DCFPAK has been built in a series of versions designed to allow access to expanded capabilities as they are completed. Eight versions of DCFPAK were built from 1996 through 2008. The most recently released version is DCFPAK 2.2 (2008). The present version, called DCFPAK 3.0, improves DCFPAK 2.2 mainly by expanding the set of radionuclides addressed in the inhalation and ingestion scenarios.

This version corrects an error in the module calculating the remainder dose, corrects the nuclear data file, uses of the ICRP lung deposition values as a f(amad) to improve the agreement with ICRP 72 values, and overcomes a Windows 7 and 8 issue in a commercial dll.

DC_PAK3.02_setup.exe (23.6 MB)

Abstract-DCFPakv.3.docx(14 KB)

Program can be installed and run from a flash drive (USD).


Acute Dose Code Version 1.2
K. F. Eckerman
Oak Ridge National Laboratory
Nov 7, 2012

The Acute Dose code computes age-specific absorbed dose coefficients for user specified commitment periods (integration times post an acute intake) and radionuclides for inhalation and ingestion intakes of radionuclides. The upper limits for the integrals are read from \DATA\AcutDose.INI.

The absorbed dose rate files were archived on the FGR-13 CD.

The user selects

  1. either the ingestion or inhalation data set,
  2. the age(s) of interest and
  3. the organ(s) to be processed.

To select multiple ages or organs mark the desired items by holding down and clicking the left mouse button. When prompted, the user should enter the radioisotope of interest.

Acute Dose Calculator (single 92.609 KB file)

Program can be installed and run from a flash drive (USD).

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RiskTab 2.2.1 Software Package
K.F. Eckerman
Oak Ridge National Laboratory
Nov 14, 2012

RiskTab_Full_setup.exe installs the application RiskTab, its associated data files, and places the RiskTab icon on the desktop. The default folder for the installation is \RiskTab however you can select or define a different folder. Accept the defaults on any remaining questions during the installation. The installation will end with the option of displaying this file. RiskTab can be invoked by clicking its icon on the desktop. To remove RiskTab from the computer click the executable UNINS000.EXE in the in the folder to which RiskTab was installed.

RiskTab tabulates the lifetime risk per unit intake by inhalation or ingestion for a user specific radionuclide and period of chronic intake. The tabulations are derived from risk as a function of age files archived on the FGR 13 CD. The CD files have been converted to direct access files to facilitate RiskTab access to the data for the user specified radionuclide. Age and gender specific intakes for the intake period are calculated assuming a uniform concentration of the radionuclide in air and water (and in the diet). The risk coefficients for the intake are per Bq inhaled or ingested over the exposure period.


RiskTab_Full_setup.exe(33.3 MB)

Program can be installed and run from a flash drive (USD).


Federal Guidance Report No.12

External Exposure to Radionuclides in Air, Water, and Soil [EPA 402-R-93-81] September 1993
This Federal guidance report is the third of a series designed to provide technical information useful in implementing radiation protection programs. The dose coefficients in this report are intended for use by federal agencies having regulatory responsibilities for protection of members of the public and/or workers. We also encourage their use by State and local authorities.

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Federal Guidance Report No. 11

Limiting Values of Radionuclide Intake and Air Concentration and Dose Conversion Factors for Inhalation, Submersion, and Ingestion [EPA 520/1-88-020] September 1988
This report provides derived guides (limiting values) of radionuclide intake and air concentration for control of occupational exposure that are consistent with 1987 Federal Guidance Document, Radiation Protection Guidance to Federal Agencies for Occupational Exposure. The derived guides serve as the basis for regulations setting upper bounds on the inhalation and ingestion of, and submersion in, radioactive materials in the workplace. The report also includes tables of exposure-to-dose conversion factors for general use in assessing average individual committed doses in any population that is adequately characterized by Reference Man (ICRP 1975). This report supersedes Federal Guidance Report No. 10.

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Federal Guidance Report No.10

The Radioactivity Concentration Guides [EPA 520/1-84-010] December 1984
This report provides numerical values for the concentrations of radioactivity in air and water, corresponding to the limiting annual doses recommended for workers in the 1960 Federal Guidance Document, Radiation Protection Guidance for Federal Agencies.

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Federal Guidance Report No. 9

Radiation Protection Guidance for Diagnostic X-rays [EPA 520/4-76-019] October 1976
This report, which was prepared in cooperation with an Interagency Working Group on Medical Radiation formed on July 5, 1974, provides recommendations to the President for use by federal agencies in developing standards to reduce unnecessary radiation exposure due to medical uses of diagnostic x rays. It provides the basis for the federal guidance document, Radiation Protection Guidance to Federal Agencies for Diagnostic X-rays.

Background Report: Recommendations on Guidance for Diagnostic X-Ray Studies in Federal Health Care Facilities [EPA 520/4-76-002] March 1976

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Federal Radiation Council Reports

Federal Guidance Report No. 8

Guidance for the Control of Radiation Hazards in Uranium Mining (PDF) (60 pp, 3,964K), Federal Radiation Council, 9/67
This report contains background material used in the development of the Federal Guidance Document, Underground Mining of Uranium Ore.

FRC Reports List


Federal Guidance Report No. 7

Background Material for the Development of Radiation Protection Standards (PDF) (49 pp, 1.13MB), Federal Radiation Council
This report provides background material used in the development of guidance for Federal agencies in planning activities to protect the population from strontium-89, strontium-90, and cesium-137 for certain situations.

Protective Action Guides for Strontium-89, Strontium-90, and Cesium-137 (PDF) (49 pp, 1,154K), Federal Radiation Council, 5/65

FRC Report List


Federal Guidance Report No. 6

Revised Fallout Estimates for 1964-1965 and Verification of the 1963 Predictions (PDF) (32pp, 556 K)
Federal Radiation Council, 10/64 This report documents a study showing that the predictions in FRC Report No. 4, were substantially correct, and the conclusions in that report still apply.

FRC Report List


Federal Guidance Report No. 5

Background Material for the Development of Radiation Protection Standards (PDF) (19pp, 464 K), Federal Radiation Council, 7/64
This guidance provides background material used in the development of guidance for Federal agencies for (1) planning protective actions to reduce potential doses to the population from radioactive fission products which may contaminate food, and (2) doses at which implementation of protective actions may be appropriate.

FRC Report List


Federal Guidance Report No. 4

Estimates and Evaluation of Fallout in the United States from Nuclear Weapons Testing Conducted Through 1962 (PDF) (34 pp, 1,131 K), Federal Radiation Council, 5/63
This report provides an analysis of the levels of fallout anticipated in 1963 and subsequent years following the programs of atmospheric nuclear weapons testing conducted through 1962. The report forecasts a substantial increase in the probable levels of radionuclides from fallout during 1963 with decreasing quantities in subsequent years.

FRC Report List


Federal Guidance Report No. 3

Health Implications of Fallout from Nuclear Weapons Testing Through 1961 (PDF) (13pp, 504 K), Federal Radiation Council, 5/62
This report evaluates the health implication of fallout from nuclear weapons testing conducted through 1961. It concluded that nuclear testing through 1961 increased by small amounts the normal risks of adverse health effects to the general population.

FRC Report List


Federal Guidance Report Report No. 2

Background Material for the Development of Radiation Protection Standards (PDF) (23pp, 370 K), Federal Radiation Council September, 1961
This report provides the background information for the 1961 Federal Guidance Document. It includes Radiation Protection Guides for certain organs of individuals in the general population, as well as averages over exposed populations.

FRC Report List


Federal Guidance Report No. 1

Background Material for the Development of Radiation Protection Standards (PDF) (43 pp, 546 K), Federal Radiation Council, 5/60
This report provides the background information for the development of the 1960 and 1961 Federal Guidance Documents. It introduced and defined the term "Radiation Protection Guide" (RPG). It provided numerical values for RPGs for the whole body and certain organs of radiation workers, and for the whole body of individuals in the general population as well as average population gonadal dose.

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