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Clinton Engineer Works (CEW)

(Site Profile/Docket Number 222)

Location: Oak Ridge, Tennessee

Also Known As: Oak Ridge Area, Oak Ridge Reservation

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 Clinton Engineer Works.

Class(es) Added to the SEC

  • All employees of the Tennessee Eastman Corporation (1943–1947) and the Carbide and Carbon Chemicals Corporation (1947–1949) who were employed at the Clinton Engineer Works in Oak Ridge, Tennessee, from January 1, 1943 through December 31, 1949 for a number of work days aggregating at least 250 work days, occurring either solely under this employment or in combination with work days within the parameters established for one or more classes of employees included in the Special Exposure Cohort.

    Note: This class was established from Petition 178

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 178 (Jan 1, 1943 to May 18, 1947)

Petition 178
Steps in Petition Process: Petition Details:

Date Received

July 28, 2010

Date Qualified for Evaluation

October 20, 2010

Summary of Information in Petition

Job Titles and/or Job Duties: All guards and service workers who worked in or around the warehouses at the Elza Gate area

Period of Employment: January 1, 1943 through May 18, 1947

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

July 28, 2010 [1.4 MB (40 pages)]

Federal Register Notice Announcing that a Clinton Engineer Works (CEW) SEC Petition has met the Minimum Qualifications for Review and Evaluation

November 2, 2010 [51 KB (1 page)]

SEC Petition Evaluation Report

November 8, 2010 [509KB (56 pages)]

Evaluation Report Sent to the Advisory Board

February 9, 2012

Petition Discussed by the Advisory Board

The petition was discussed by the Advisory Board on February 29, 2012, during its regular meeting.

Note: the agenda for this meeting is available on the Advisory Board and Public Meetings page.

Advisory Board Recommendation on SEC Petition

April 9, 2012 [62 KB (2 pages)]

HHS Letters to Congress Regarding the SEC Petition

May 11, 2012 [272 KB (10 pages)]

HHS Designation of Additional Members to the SEC

May 11, 2012 [131 KB (5 pages)]

Federal Register Notice: Designation/Determination Regarding a Class of Employees for Addition to the Special Exposure Cohort

June 29, 2012 [63 KB (2 pages)]

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

June 10, 2012

Federal Register Notice: Final Effect of Designation of a Class of Employees for Addition to the Special Exposure Cohort

June 29, 2012 [107 KB (2 pages)]

Letter to DOL Regarding the Addition of a New Class of Employees to the SEC

June 18, 2012 [35 KB (1 page)]

Public Comments on Clinton Engineer Works Documents

How to Submit Comments

Comments on Clinton Engineer Works Documents can be submitted to the NIOSH Docket Officer electronically by email at 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 (222) on all comments.

Comments Received

At this time, no comments have been submitted.