You may request to schedule your appointment through your USCIS online account or by calling the USCIS Contact Center at 800-375-5283. You must make your request before the date and time of the original appointment, and you must establish a good cause for rescheduling.

The Receipt Notice you receive from USCIS will include a 13-character “Receipt Number” (3 letters and 10 numbers). You can use this receipt number to track the progress of your application.

If you are applying within the U.S, you will see a civil surgeon designated by USCIS.

If you’re applying from abroad, you will see a panel physician authorized by the U.S Department of State.

No, USCIS will schedule you if they are needed at your local USCIS office.

It depends on the process you are applying for. 

All green card holders can apply for U.S citizenship after 5 years, but those with a U.S spouse and received green card though marriage can apply for after 3 years.

You will need to apply for a work permit using form I-765 application for Employment Authorization.