On this federal holiday, the president-elect and vice-president-elect are sworn in and take office.
Inauguration Day occurs every four years on January 20 (or January 21 if January 20 falls on a Sunday) at the U.S. Capitol building in Washington, DC.
The vice-president-elect is sworn in first, and repeats the same oath of office, in use since 1884, as senators, representatives, and other federal employees:
"I do solemnly swear (or affirm) that I will support and defend the Constitution of the United States against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; that I take this obligation freely, without any mental reservation or purpose of evasion; and that I will well and faithfully discharge the duties of the office on which I am about to enter: So help me God."
Around noon, the president-elect recites the following oath, in accordance with Article II, Section I of the U.S. Constitution:
"I do solemnly swear (or affirm) that I will faithfully execute the Office of President of the United States, and will to the best of my ability, preserve, protect and defend the Constitution of the United States."
The inauguration is planned by the Joint Congressional Committee on Inaugural Ceremonies (JCCIC). Inaugural events include the swearing-in ceremony, the inaugural address, and the pass in review. Learn more about each event from the JCCIC.
For more information on the history of presidential inaugurations, explore the inaugural materials from the collections of the Library of Congress.