National Institute for Occupational Safety and Health

Special Exposure Cohort Petition Status Updates

Charles Nelson, MS

DCAS SEC Team Lead

Advisory Board on Radiation and Worker Health, 151st Meeting

Teleconference| April 20, 2023
Purpose

 Update to the petitioners, general public, and the Advisory

Board on Radiation and Worker Health (Advisory Board)

 Special Exposure Cohort (SEC) summary of petitions

– in qualification

– under evaluation

– currently under Advisory Board review

– potential SEC petitions (83.14)
Summary

 Petitions received – 260

a

– In qualification process – 0

– Qualified for evaluation – 153

– New Evaluations in progress – 0

– Evaluations completed – 153

 Reports with the Advisory Board – 10

 Petitions not qualifying for evaluation – 107

a

Includes 5 petitions received prior to the issuance of the SEC regulation.
SEC Petitions under Evaluation

 Lawrence Livermore National Laboratory 1990-1995

– Livermore, CA

– Petition SEC-0221

– ER Addendum to address remaining years for all

employees

• Planned due date for Addendum: September 2023
Under Advisory Board Review (1/6)

 Hanford (SEC-0057) – All SEC issues are closed except those

related to current ongoing co-exposure modeling efforts

 Savannah River Site (SEC-0103) – NIOSH is working to resolve

issues raised by Sanford Cohen & Associates (SC&A) and the

Work Group

– A WG meeting occurred on March 22, 2023

• There is an update from the SRS WG following this

presentation
Under Advisory Board Review (2/6)

 Los Alamos National Laboratory (SEC-0109) – NIOSH working

to resolve issues raised by SC&A and the Work Group

– A data capture trip to LANL was performed in January 2023

and a tour of the LANSCE facility

– An additional data capture is scheduled for May 5, 2023

• Finish the review of identified boxes

• Tour of LANSCE facility
Under Advisory Board Review (3/6)

 Idaho National Lab (SEC-0219) - NIOSH is working to resolve

issues raised by SC&A and the work group.

– A data capture trip to INL was performed the week of

12/12/22

– There is a tentative plan to visit INL the week of

06/26/2023 to review classified records associated with

the INL Burial Grounds
Under Advisory Board Review (4/6)

 Argonne National Laboratory West (SEC-0224) - NIOSH is

working to resolve issues raised by SC&A and the work group.

 Area IV Santa Susanna (SEC-0235) - NIOSH is waiting on

records to be released from the records center and the record

center to allow visitors

– The DOE record center EMCBC is open but restricting

visitor access at this time.

– In the meantime, EMCBC has been digitizing records and

sending them to DCAS for review.
Under Advisory Board Review (5/6)

 Metals and Controls (SEC-0236) – With the M&C Work Group

– There is a M&C WG meeting scheduled for 05/12/2023

 De Soto Avenue Facility (SEC-0246) - NIOSH is working to

provide clarification on a remaining issues

– The DOE record center EMCBC is open but restricting

visitor access at this time.

– In the meantime, EMCBC has been digitizing records and

sending them to DCAS for review.
Under Advisory Board Review (6/6)

 Y-12 Plant (SEC-0250) - Addendum to the ER was presented in

the August 2021 Advisory Board meeting

– SC&A was assigned to perform a review of the ER

 Pinellas Plant (SEC-0256) - NIOSH presented the ER at the

December 2021 Advisory Board meeting

– SC&A was assigned to perform a review of the ER
Department of Health and Human Services

Centers for Disease Control and Prevention

National Institute for Occupational Safety and Health

Sites With Evaluation Period Awaiting Action (1/3)

Site (SEC Number) Date

Hanford (SEC-0057) 1984-1990 

(Prime 

Contractors)

Savannah River Site (SEC-0103) 1972-2007 

(Prime 

Contractors)

Savannah River Site (SEC-0103) 1991-2007 

(Subcontractors) 
Department of Health and Human Services

Centers for Disease Control and Prevention

National Institute for Occupational Safety and Health

Sites With Evaluation Period Awaiting Action (2/3)

Site (SEC Number) Date

Los Alamos National Laboratory (SEC-0109) 1996-2005

Idaho National Laboratory (SEC-0219) 1949-1970

Argonne National Laboratory - West (SEC0224)1958-1979

Area IV Santa Susanna (SEC-0235) 1991-1993
Department of Health and Human Services

Centers for Disease Control and Prevention

National Institute for Occupational Safety and Health

Sites With Evaluation Period Awaiting Action (3/3)

Site (SEC Number) Date

Metals and Controls (SEC-0236) 1968-1997 

(Residual 

Period) 

De Soto Avenue Facility (SEC-0246) 1965-1995

Y-12 (SEC-0250) 1979-1994

Pinellas (SEC-0256) 1957-1990
Potential SEC Petition 

 West Valley Demonstration Project

– NIOSH evaluating a potential SEC for the Atomic Weapons 

Employer (AWE) period 1966-1968
Questions?
For more information, contact CDC

1-800-CDC-INFO (232-4636)

TTY: 1-888-232-6348 www.cdc.gov

The findings and conclusions in this report are those of the authors and do not necessarily represent the 

official position of the Centers for Disease Control and Prevention.