The only guidelines offered by the Constitution in regards to the Inaguration are in Article 2 Section 1 Clause 8.
Before he enter on the Execution of his Office, he shall take the following Oath or Affirmation:– 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.
Nothing about who needs to administer the Oath, and nothing specifically about WHEN it needs to be done. The only thing the Constitution affirms is about the ENDING of the current President's term, which is detailed in the 20th Amendment, Section 1.
The terms of the President and Vice President shall end at noon on the 20th day of January, and the terms of Senators and Representatives at noon on the 3d day of January, of the years in which such terms would have ended if this article had not been ratified; and the terms of their successors shall then begin.
I’m guessing it COULD be done anywhere. Johnson was sworn in on AF1 after JFK was shot.
The only guidelines offered by the Constitution in regards to the Inaguration are in Article 2 Section 1 Clause 8.
Nothing about who needs to administer the Oath, and nothing specifically about WHEN it needs to be done. The only thing the Constitution affirms is about the ENDING of the current President's term, which is detailed in the 20th Amendment, Section 1.