Web Updates

Our website changes frequently as we update and add new information. We encourage you to use the “refresh” or “reload” feature on your web browser to ensure that you view our website’s current version. If you would like to receive email messages notifying you of when an update to our website has occurred, please email us at ocaswebupdates@cdc.gov with your request.


Monday, August 18, 2025

How to Submit an SEC Petition

SEC Petition Instructions & Petition Forms

  1. Updated fax number for Special Exposure Cohort (SEC) petition submission.

Los Alamos National Laboratory (LANL)

Advisory Board and NIOSH Discussions on Los Alamos National Laboratory (LANL)

  1. NIOSH/ORAU: NIOSH Response to SC&A’s Review of Remaining LANL SEC-00109 Internal Dose Issues for 1996–2005 (April 23, 2025)

Technical Information Bulletins (TIBs) — Numerical Listing

Active Technical Information Bulletins (TIBs)

  1. Index — 92:

    • NIOSH/ORAU: Response to SC&A’s “A Review of ORAUT-OTIB-0092 Correction Factors for Neutron Dose Measured with Nuclear Track Emulsion, Type A Film” (June 23, 2025)

    • SC&A Draft: A Review of ORAUT-OTIB-0092 Correction Factors for Neutron Dose Measured with Nuclear Track Emulsion, Type A Film (March 25, 2025)

Previous Updates