The United States presidential line of succession is the order in which the vice president of the United States and other officers of the U.S. federal government assume the powers and duties of the U.S. presidency (or the office itself, in the instance of succession by the vice president) upon an elected president's death, resignation, removal from office, or incapacity.
The order of succession specifies that the office passes to the vice president; if the vice presidency is simultaneously vacant, the powers and duties of the presidency pass to the speaker of the House of Representatives, president pro tempore of the Senate, and then Cabinet secretaries, depending on eligibility.
Presidential succession is referred to multiple times in the U.S.