I read:
You will not receive a U.S. passport on the day of your swearing-in ceremony. But in some places, if you plan ahead and also leave yourself some time at the end of the ceremony to stand in a long line, you might be able to apply for one. Find out whether the U.S. State Department will be providing staff to accept passport applications at your swearing-in ceremony.
How can I find out whether the U.S. State Department will be providing staff to accept passport applications at my swearing-in ceremony?