| Question 1: In 1947, Congress authorized the formulation of the first ________ for mine safety. | |||
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| Question 2: In 1910, Congress established the Bureau of Mines as a new agency in the ________. | |||
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| Question 3: In 1891, the ________ passed the first federal statute governing mine safety. | |||
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| Question 4: Currently, Joe Main is the head of the MSHA and is thus an Assistant Secretary of the ________. | |||
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