Executive Order 10156—Designation of Certain Officers of the Department of the Interior to Act as Secretary of the Interior
By virtue of the authority vested in me by section 179 of the Revised Statutes of the United States (5 U.S.C. 6), and as President of the United States, it is ordered as follows:
1. (a) The Under Secretary of the Interior shall perform the duties of the Secretary of the Interior in case of the death, resignation, absence, or sickness of the Secretary of the Interior.
(b) The ranking Assistant Secretary of the Interior present shall perform the duties of the Secretary of the Interior in case of the death, resignation, absence, or sickness of both the Secretary of the Interior and the Under Secretary of the Interior.
(c) The Solicitor of the Department of the Interior shall perform the duties of the Secretary of the Interior in case of the death, resignation, absence, or sickness of the Secretary, the Under Secretary, and the Assistant Secretaries of the Interior.
2. The Assistant Secretary of the Interior whose commission bears the earliest date, or, if the commissions of Assistant Secretaries bear the same date, the Assistant Secretary who first took the oath of office, shall be considered the ranking Assistant Secretary of the Interior for the purposes of paragraph 1(b) of this order.
3. This order supersedes Executive Order No. 9866 of June 14, 1947, entitled "Designation of Officers To Act as Secretary of the Interior."
HARRY S. TRUMAN
THE WHITE HOUSE,
August 26, 1950
Harry S Truman, Executive Order 10156—Designation of Certain Officers of the Department of the Interior to Act as Secretary of the Interior Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/279003