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Metals and Controls Corp.

(Site Profile/Docket Number 188)

Location: Attleboro, Massachusetts

Also known as: M & C, Texas Instruments, M&C Nuclear, Metals and Controls Nuclear Corp.

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

There is one open/active SEC petition from Metals and Controls Corp., Petition 236. NIOSH is reviewing the petition to see if it qualifies for evaluation. If the petition qualifies, it will receive a full evaluation by NIOSH, the Advisory Board on Radiation and Worker Health, and the Secretary of the Department of Health and Human Services.

Class(es) Added to the SEC

  • All Atomic Weapons Employees who worked at Metals and Controls Corp. in Attleboro, MA, from January 1, 1952 to December 31, 1967, 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 other classes of employees included in the SEC.

    This class was established by Petition 149.

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 149 (Jan 1, 1952 to Dec 31, 1967)

Steps in Petition Process: Petition Details:

Date Received

July 21, 2009

Date Qualified for Evaluation

July 21, 2009

Summary of Information in Petition

Location: Attleboro, Massachusetts

Job Titles and/or Job Duties: All Atomic Weapons Employer employees who were exposed to thorium

Period of Employment: January 1, 1958 to December 31, 1967

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

Copy of the Metals and Controls Corp. SEC petition received [173 KB (3 pages)] July 21, 2009

Federal Register Notice Announcing that a Metals and Controls Corp. SEC Petition has met the Minimum Qualifications for Review and Evaluation

August 31, 2009 [26 KB (2 pages)]

SEC Petition Evaluation Report

August 19, 2009 [155 KB (33 pages)]

Petition Discussed by the Advisory Board

The petition was discussed by the Advisory Board on October 21, 2009, during its regular meeting.

Advisory Board Recommendation on SEC Petition

November 16, 2009 [29 KB (2 pages)]

HHS Letters to Congress Regarding the SEC Petition

December 10, 2009 [77 KB (10 pages)]

HHS Designation of Additional Members to the SEC


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


Effective Date for the SEC Class

January 9, 2010

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

January 21, 2010 [40 KB (1 page)]

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

January 12, 2010 [18 KB (1 page)]

Public Comments on Metals and Controls Corp. Documents

How to Submit Comments

Comments on Metals and Controls Corp. 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 (188) on all comments.

Comments Received

At this time, no comments have been submitted on Metals and Controls Corp. documents.