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Original site: www.cdc.gov/niosh/ocas/ | RestoredCDC.org is an independent project, not affiliated with CDC or any federal entity. Visit CDC.gov for free official information. Due to archival on January 6, 2025, recent outbreak data is unavailable. Videos are not restored. Access data.restoredcdc.org for restored data. Use of this site implies acceptance of this disclaimer.[More]About Us Report Bug Compare ContentSkip directly to site content Skip directly to searchEspañol | Other LanguagesHere's how you knowAn official website of the United States government Here's how you knowNIOSH Radiation Dose Reconstruction ProgramNIOSH Radiation Dose Reconstruction ProgramCenters for Disease Control and Prevention. CDC twenty four seven. Saving Lives, Protecting People NIOSH Radiation Dose Reconstruction ProgramSearchSearch Menu Navigation Menu× NIOSHNIOSH All CDCSubmitNIOSH Radiation Dose Reconstruction Program* About DCAS* The Act/EEOICPA* Dose Reconstruction (DR)+ BACKDose Reconstruction (DR)+ Datao BACKDatao BACKDose Reconstruction (DR) Datao Sourceso Formats & Typeso Sensitive Datao Work History Phone Callo Data Search and Capture Effortso NIOSH Radiation Dose Reconstruction Program Home+ Methods+ Production+ Technical Documents Used in Dose Reconstructions+ Program Evaluation Reports and Plans+ Quality Assurance and Quality Control+ Support Contractor+ Software (IMBA)+ RECA Claims+ NIOSH Radiation Dose Reconstruction Program Home* Probability of Causation+ BACKProbability of Causation+ Calculating PC+ News & Updates+ NIOSH-IREP Software+ NIOSH Radiation Dose Reconstruction Program Home* Special Exposure Cohort+ BACKSpecial Exposure Cohort+ Submit a Petition+ Check Petition Statuso BACKCheck Petition Statuso BACKSpecial Exposure Cohort Check Petition Statuso SEC Status Tableo NIOSH Radiation Dose Reconstruction Program Home+ Get Help+ NIOSH Radiation Dose Reconstruction Program Home* Residual Contamination* Advisory Board+ BACKAdvisory Board+ Public Meetings+ Subcommittee and Work Groups+ SEC Petition Recommendations+ Technical Support for the Review of NIOSH Dose Reconstruction Program+ Reports from the Advisory Board's Technical Support Contractor+ Technical Review Summaries from the Technical Support Contractor+ Procedures+ Correspondence+ NIOSH Radiation Dose Reconstruction Program Home* Work Site Information* Publications & Products* Program Reviews* Reports to Congress* Policies, Procedures, and Guidelines* NIOSH Public Docket* Related Program Links* Contact Us* HELP+ BACKHELP+ Help A – Z+ Accessibility+ Acronyms+ Frequently Asked Questions (FAQs)o BACKFrequently Asked Questions (FAQs)o BACKHELP Frequently Asked Questions (FAQs)o The Acto Case Concernso Claimant Correspondenceo Conflict or Biaso Dose Reconstructiono Freedom of Information Act (FOIA)o National Defense Authorization Acto NIOSH-IREPo Probability of Causationo Residual Contamination Reporto Responsibilities under Subtitle B of EEOICPA (The Act)o Special Exposure Cohorto Technical Documentso Work History Phone Callo NIOSH Radiation Dose Reconstruction Program Home+ Glossary+ NIOSH Radiation Dose Reconstruction Program Home* NIOSH Radiation Dose Reconstruction Program HomeNIOSH Radiation Dose Reconstruction Programalert iconCybersecurity Modernization InitiativeWe are taking steps to continue to modernize and secure our data, applications, and systems. We completed the first phase and restored many of the functions put on pause in May 2021. Now that the first phase is complete, work will resume at a slower pace but will speed up as new systems and applications are brought online. For more information and updates, please visit our Cybersecurity Modernization Initiative web page.NIOSH Radiation Dose Reconstruction ProgramRadiation Dose ReconstructionNIOSH Radiation Dose Reconstruction ProgramRelated PagesDivision of Compensation Analysis and Support (DCAS)NIOSH created DCAS in 2001 to estimate work related radiation exposure (dose reconstruction) for certain workers with cancer who filed claims under Part B of the Energy Employees Occupational Illness Compensation Program Act of 2000 (the Act/EEOICPA). Part B is a portion of the Act that provides compensation of $150,000 and medical benefits to employees (or their survivors) for illness caused by exposure to radiation, beryllium, and silica during their employment at DOE, its contractor, or subcontractor facilities.MoreRocky Flats PlantPlutonium Glove-Box line (DOE Image Archive)Mound FacilityView of test fire console (DOE Image Archive)Oak Ridge National LaboratoryArray of detectors (DOE Image Archive)Savannah River SiteThe receiving basin for the offsite fuels (DOE Image Archive)Mound FacilityTechnician monitors assay of nuclear material (DOE Image Archive)Rocky Flats PlantPlutonium Glove-Box line (DOE Image Archive)Mound FacilityView of test fire console (DOE Image Archive)Oak Ridge National LaboratoryArray of detectors (DOE Image Archive)Savannah River SiteThe receiving basin for the offsite fuels (DOE Image Archive)Mound FacilityTechnician monitors assay of nuclear material (DOE Image Archive)Rocky Flats PlantPlutonium Glove-Box line (DOE Image Archive)* 1* 2* 3* 4* 51/5NIOSH Dose Reconstruction TopicsDose ReconstructionScientific method of estimating a worker’s past exposure to ionizing radiationMoreProbability of CausationLikelihood a worker’s cancer was caused by work-related exposure to ionizing radiationMoreSpecial Exposure CohortCategory of employees that allows eligible claims to be compensated without a dose reconstructionMoreResidual ContaminationRadioactive material or beryllium that remains at a work site after nuclear weapons production endedMoreNIOSH Dose Reconstruction Claimant and Contact InformationClaimant Corner* Check SEC Petition Status* Submit an SEC Petition* Lookup Work Site Information* Contact your Program Analyst* File a Claim with DOLContact Us* General Inquiries* Case Status* Special Exposure Cohort (SEC)* NIOSH Public Docket Office Submissions* Records Request* Media Inquiries* Website InquiriesWeb UpdatesHelp: A – Z Topic List* A* B* C* D* E* F* G* H* I* J* K* L* M* N* O* P* Q* R* S* T* U* V* W* X* Y* ZDCAS NewsroomNIOSH Dose Reconstruction Program ResourcesPublications & ProductsAdvisory BoardRelated Program LinksTools & ResourcesNIOSH Public DocketPolicies, Procedures & GuidelinesProgram ReviewsReports to CongressLast Reviewed: June 28, 2024Source: National Institute for Occupational Safety and Health* Syndicatehome Radiation Dose Reconstruction* About DCAS* The Act/EEOICPA* Dose Reconstruction (DR) plus icon+ Data plus icono Sourceso Formats & Typeso Sensitive Datao Work History Phone Callo Data Search and Capture Efforts+ Methods+ Production+ Technical Documents Used in Dose Reconstructions+ Program Evaluation Reports and Plans+ Quality Assurance and Quality Control+ Support Contractor+ Software (IMBA)+ RECA Claims* Probability of Causation plus icon+ Calculating PC+ News & Updates+ NIOSH-IREP Software* Special Exposure Cohort plus icon+ Submit a Petition+ Check Petition Status plus icono SEC Status Table+ Get Help* Residual Contamination* Advisory Board plus icon+ Public Meetings+ Subcommittee and Work Groups+ SEC Petition Recommendations+ Technical Support for the Review of NIOSH Dose Reconstruction Program+ Reports from the Advisory Board's Technical Support Contractor+ Technical Review Summaries from the Technical Support Contractor+ Procedures+ Correspondence* Work Site Information* Publications & Products* Program Reviews* Reports to Congress* Policies, Procedures, and Guidelines* NIOSH Public Docket* Related Program Links* Contact Us* HELP plus icon+ Help A – Z+ Accessibility+ Acronyms+ Frequently Asked Questions (FAQs) plus icono The Acto Case Concernso Claimant Correspondenceo Conflict or Biaso Dose Reconstructiono Freedom of Information Act (FOIA)o National Defense Authorization Acto NIOSH-IREPo Probability of Causationo Residual Contamination Reporto Responsibilities under Subtitle B of EEOICPA (The Act)o Special Exposure Cohorto Technical Documentso Work History Phone Call+ Glossary* About CDC* Contact Us* 800-232-4636Facebook Twitter Instagram LinkedIn Youtube Pinterest SnapchatFacebook Twitter Instagram LinkedIn Youtube Pinterest Snapchat RSS* CONTACT CDCContact UsCall 800-232-4636Email Us* ABOUT CDC+ About CDC+ Jobs+ Funding* POLICIES+ Accessibility+ External Links+ Privacy+ Policies+ Web Policies+ No Fear Act+ FOIA+ OIG+ No Fear Act+ Nondiscrimination+ Vulnerability Disclosure Policy+ CDC Archive+ Public Health Publications+ HHS.gov+ USA.gov* CONNECT WITH US+ Youtube+ Snapchat* LANGUAGES+ Español+ 繁體中文+ Tiếng Việt+ 한국어+ Tagalog+ Русский+ العربية+ Kreyòl Ayisyen+ Français+ Polski+ Português+ Italiano+ Deutsch+ 日本語+ فارسی+ English* U.S. Department of Health & Human Services* Accessibility* External Links* Privacy* Policies* Web Policies* FOIA* OIG* No Fear Act* FOIA* Nondiscrimination* OIG* Vulnerability Disclosure Policy* CDC Archive* Public Health Publications* HHS.gov* USA.govContent Credential×This image was edited or created using GenAI (generative artificial intelligence).Our 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