Executive Order 11880: Designation of officers of the Department of Commerce to act as Secretary of Commerce [open pdf - 27KB]
Alternate Title: EO 11880: Designation of officers of the Department of Commerce to act as Secretary of Commerce
"During any period when, by reason of absence, disability or vacancy in office, both the Secretary of Commerce and the Deputy Secretary of Commerce are not available to exercise the powers or perform the duties of the Office of Secretary, an Assistant Secretary of Commerce, the General Counsel of the Department of Commerce, or an officer of the Department of Commerce appointed by the President with the advice and consent of the Senate, in such order as the Secretary of Commerce may from time to time prescribe, shall act as Secretary. If no such order of succession is in effect at that time, an Assistant Secretary or the General Counsel shall act as Secretary in the order in which they shall have taken office as Assistant Secretaries or General Counsel."
Executive Order 11880; EO 11880
Federal Register: http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR