Executive Biographies
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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.
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DEPUTY ASSISTANT SECRETARY FOR POLICY
Julie E. Aaronson began serving as MSHA’s Deputy Assistant Secretary for Policy on August 14, 2023.
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DEPUTY ASSISTANT SECRETARY FOR OPERATIONS
Patricia W. Silvey was appointed Deputy Assistant Secretary for Operations in December 2010.