Presidential Succession Act: Order, Eligibility, and Acting President

The presidential line of succession is the ordered list of officials who would step into the presidency if the sitting president could no longer serve. Set by the Presidential Succession Act of 1947 and codified at 3 U.S.C. § 19, it begins with the Vice President, then the Speaker of the House, then the President pro tempore of the Senate, and then runs through 15 Cabinet secretaries in the order their departments were created.¹

The Full Order of Succession

1. Vice President
2. Speaker of the House of Representatives
3. President pro tempore of the Senate
4. Secretary of State
5. Secretary of the Treasury
6. Secretary of Defense
7. Attorney General
8. Secretary of the Interior
9. Secretary of Agriculture
10. Secretary of Commerce
11. Secretary of Labor
12. Secretary of Health and Human Services
13. Secretary of Housing and Urban Development
14. Secretary of Transportation
15. Secretary of Energy
16. Secretary of Education
17. Secretary of Veterans Affairs
18. Secretary of Homeland Security

The constitutional authority for this list comes from Article II, Section 1, Clause 6, which lets Congress decide who acts as President when both the presidency and vice presidency are vacant.² Congress has rewritten the statute three times, most recently in 1947.

Why the Cabinet Is Ranked That Way

The Cabinet order has nothing to do with prestige or the size of a department’s budget. Secretaries are placed by the date Congress created their department. State comes first because the Department of State was the first federal agency signed into law under the Constitution, on July 27, 1789.³ Treasury followed later that same year.⁴ Homeland Security sits at the bottom because it was created in 2002. Any new department Congress creates in the future would be added to the end of the list.

Who Actually Qualifies

Holding the right title is not enough. Everyone in the line must meet the same three constitutional requirements as any presidential candidate: natural-born U.S. citizenship, at least 35 years of age, and 14 years of U.S. residency.⁵ A naturalized citizen serving in the Cabinet is skipped. So is a Cabinet secretary who is not yet 35. The line does not pause; it moves to the next eligible person.

Dual citizenship is not a bar. Federal law does not force Americans to choose between U.S. citizenship and another nationality, and a natural-born citizen who also holds foreign citizenship remains eligible.⁶

Cabinet secretaries face an extra requirement. Under 3 U.S.C. § 19(e), only a secretary who was confirmed by the Senate before the vacancy is eligible to act as President.¹ An “acting” secretary running a department temporarily without Senate confirmation for that specific post does not count, no matter how high the department ranks. Administrations sometimes go months with acting Cabinet heads, and those officials are invisible to the succession statute.

A Cabinet secretary who is under impeachment by the House at the moment the presidency would fall to them is also disqualified, even before any Senate trial.¹ Anyone convicted through impeachment and specifically disqualified by the Senate from holding federal office is barred as well.⁷

The Speaker and the President pro tempore must resign both their leadership post and their congressional seat before acting as President. The statute is explicit on this point.¹ The resignation is permanent. A Speaker who steps up cannot later return to Congress when the crisis ends. Cabinet secretaries face the same trade-off; taking the presidential oath automatically vacates their old post.

If the Speaker’s office and the President pro tempore’s office are both vacant, or both officeholders fail to qualify, the line skips to the highest eligible Cabinet secretary.

Whether a former two-term president could serve as Acting President through the succession line is unsettled. The 22nd Amendment bars a person from being “elected” president more than twice.⁸ The word “elected” leaves open the possibility that a term-limited former president could still succeed to the role through the statute, but no court has ever ruled on it and the scenario has never arisen.

Acting President vs. Becoming President

The Vice President is the only person in the line who actually becomes President. Under Section 1 of the 25th Amendment, a Vice President who steps in after the death, resignation, or removal of the President “shall become President.”⁹ Gerald Ford held the full title in 1974, not the “Acting President” title.

Everyone else, from the Speaker through the Secretary of Homeland Security, serves only as Acting President. The role lasts until the end of the current presidential term, or until a person with a prior claim becomes able to serve.¹ The powers are identical to those of an elected president: commander in chief, signing legislation, executive orders, appointments. So is the pay. An Acting President receives the same salary as the President under 3 U.S.C. § 19(f), currently $400,000 a year.¹⁰

Can a Higher-Ranked Official Take Over Later?

Yes, but only in one direction. If a Cabinet secretary is serving as Acting President because no eligible Speaker or President pro tempore existed at the time, a newly elected Speaker can displace them. The statute refers to these people as “prior-entitled” individuals, and a Cabinet member’s service lasts only until “a qualified and prior-entitled individual is able to act.”¹

Cabinet secretaries cannot displace each other, however. If the Treasury Secretary is serving as Acting President and the Secretary of State later becomes available, the Secretary of State cannot bump the Treasury Secretary out. The statute says that removing the disability of a higher-listed Cabinet member “shall not terminate” the current Acting President’s service.¹ Displacement runs from legislative leaders down to Cabinet members, never sideways within the Cabinet.

When the President Is Alive but Incapacitated

The line of succession does not only activate after death or resignation. The 25th Amendment, ratified in 1967, provides two routes for handling a president who cannot perform the duties of the office.

The voluntary route: the president sends a written declaration to the Speaker of the House and the President pro tempore of the Senate. The Vice President then serves as Acting President until the president sends a second letter ending the transfer.¹¹ Presidents have used this route for scheduled medical procedures.

The involuntary route: the Vice President and a majority of the Cabinet (or another body Congress designates) jointly declare in writing that the president is unable to serve, and the Vice President takes over as Acting President. The president can dispute the declaration. If the Vice President and Cabinet reassert their position within four days, Congress decides, and it takes a two-thirds vote of both chambers to keep the president sidelined. Congress must act within 21 days.¹¹ The involuntary process has never been used.

The 25th Amendment also handles vice presidential vacancies. When the vice presidency is empty, the president nominates a replacement who takes office once confirmed by a majority vote of both the House and the Senate.¹¹ That mechanism keeps the top of the succession line filled without disturbing anyone further down.

1
Office of the Law Revision Counsel. 3 USC 19 – Vacancy in Offices of Both President and Vice President; Officers Eligible to Act
2
Legal Information Institute. Constitution Annotated – Article II, Section 1, Clause 6 – Succession Clause for the Presidency
3
U.S. Department of State. A History of the United States Department of State 1789-1996
4
U.S. Department of the Treasury. History Overview
5
Constitution Annotated. Article II Section 1 Clause 5 – Qualifications
6
U.S. Department of State. Dual Nationality
7
Constitution Annotated. Article I, Section 3, Clause 7 – Impeachment Judgments
8
Legal Information Institute. U.S. Constitution – 22nd Amendment
9
Legal Information Institute. U.S. Constitution Annotated – Section: Section 1
10
Office of the Law Revision Counsel. 3 USC 102 – Compensation of the President
11
Legal Information Institute. U.S. Constitution – 25th Amendment