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		United States Department of Labor
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        Mine Safety and Health Administration
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		Assistant Secretary

                    
            Deputy Assistant Secretary for Policy

                    
            Deputy Assistant Secretary for OperationsExecutive Biographies
Christopher J. Williamson
ASSISTANT SECRETARY OF LABOR MINE SAFETY AND HEALTH ADMINISTRATION
Christopher J. Williamson, MSHA’s new Assistant Secretary, was appointed by President Biden, effective Monday, April 11, 2022.
Julie E. Aaronson
DEPUTY ASSISTANT SECRETARY FOR POLICY
Julie E. Aaronson began serving as MSHA’s Deputy Assistant Secretary for Policy on August 14, 2023.
Patricia W. Silvey
DEPUTY ASSISTANT SECRETARY FOR OPERATIONS
Patricia W. Silvey was appointed Deputy Assistant Secretary for Operations in December 2010.Scroll to Top

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