S-50 Oak Ridge Thermal Diffusion Plant
(Site Profile/Docket Number 098)
Location: Oak Ridge, Tennessee
Special Exposure Cohort Petition Information
The Special Exposure Cohort (SEC) is a unique category of employees established by The Act (42 CFR Part 83). Claims compensated under the SEC do not have to go through the dose reconstruction process. To qualify for compensation under the SEC, a covered employee must meet specific requirements (e.g., must have at least one of 22 "specified cancers," and have worked for a specified time period at one of the SEC sites). Classes of employees and work sites can be considered for addition to the SEC through a NIOSH petition process. More information about the Special Exposure Cohort can be found on our Frequently Asked Questions page.
Open/Active SEC Petitions
To date, there are no open/active SEC petitions from S-50 Oak Ridge Thermal Diffusion Plant.
Class(es) Added to the SEC
Employees of the DOE predecessor agencies and their contractors and subcontractors who were monitored or should have been monitored while working at the S-50 Oak Ridge Thermal Diffusion Plant working for a number of work days aggregating at least 250 work day during the period from July 9, 1944, through December 31, 1951, or in combination with work days within the parameters established for one or more other classes of employees in the SEC.
Petitions Qualified for Evaluation
Below is a list of the petitions that qualified for evaluation. Select a petition on the list to view the table for that particular petition.
Petition 60Jan 1, 1944 to Dec 31, 1951
|Steps in Petition Process:||Petition Details:|
November 16, 2007
Date Qualified for Evaluation
November 21, 2007
Summary of Information in Petition
Job Titles and/or Job Duties: All workers
Period of Employment: 1944 through 1951
Note: The information above is what qualified for evaluation. During our evaluation of whether dose reconstructions can adequately be completed for the above job titles and period of employment, information may cause NIOSH to change some the dates or job titles/duties. Therefore, as this petition proceeds through the SEC petition process and if an SEC class is proposed, the proposed class may not exactly match the above information.
Copy of the Petition Received
Federal Register Notice Announcing that a Revere Copper and Brass SEC Petition has met the Minimum Qualifications for Review and Evaluation
SEC Petition Evaluation Report
Evaluation Report Sent to the Advisory Board
February 25, 2008
Petition Discussed by the Advisory Board
The petition was discussed by the Advisory Board on September 21, 2006, during its regular meeting.
Advisory Board Recommendation on SEC Petition
HHS Letters to Congress Regarding the SEC Petition
HHS Designation of Additional Members to the SEC
Federal Register Notice: Designation Regarding a Class of Employees for Addition to the Special Exposure Cohort
Note: A "designation" will be published if there is a recommendation to add a class to the SEC. A "determination" will be published if there is a recommendation not to add a class to the SEC.
Effective Date for the SEC Class
December 9, 2006
Federal Register Notice: Final Effect of Determination of a Class of Employees for Addition to the Special Exposure Cohort
Letter to DOL Regarding the Addition of a New Class of Employees to the SEC
If the energy employee's personal radiation information is incomplete, NIOSH will use other sources to estimate the radiation dose. This may involve using technical documents called Site Profiles, Technical Basis Documents, and Technical Information Bulletins.
Summary Site Profile for the S-50 Liquid Thermal Diffusion Project [121 KB (12 pages)] Approved December 8, 2006
Public Comments on S-50 Oak Ridge Thermal Diffusion Plant Documents
How to Submit Comments
Comments on S-50 Oak Ridge Thermal Diffusion Plant documents can be submitted to the NIOSH Docket Officer electronically by email at email@example.com or printed comments can be mailed to:
NIOSH Docket Office
Robert A. Taft Laboratories, MS-C34
1090 Tusculum Avenue
Cincinnati, OH 45226
Please include the Site Profile/Docket Number (098) on all comments.
At this time, no comments have been submitted on S-50 Oak Ridge Thermal Diffusion Plant documents.
- Division of Compensation Analysis and Support (DCAS)
- (513) 533-6800
- firstname.lastname@example.org or email@example.com
- National Institute for Occupational Safety and Health (NIOSH)
- Centers for Disease Control and Prevention
TTY: (888) 232-6348
- New Hours of Operation
- Contact CDC-INFO