Executive Order 6170—Assistant Secretary of the Interior Authorized to Perform the Duties of the Secretary
June 15, 1933
Pursuant to the authority conferred by section 179 of the Revised Statutes of the United States, Oscar L. Chapman, Assistant Secretary of the Interior, is authorized and directed to perform the duties of the Secretary of the Interior whenever, and so long as, the Secretary and the First Assistant Secretary of the Interior shall both be absent or unable to serve.
FRANKLIN D. ROOSEVELT
The White House,
June 15, 1933.
Franklin D. Roosevelt, Executive Order 6170—Assistant Secretary of the Interior Authorized to Perform the Duties of the Secretary Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/361991