Site: nolo.com
... Some months after submitting Form N-400 to USCIS, you will likely receive a naturalization appointment notice ... Arriving at the USCIS Office for Your Interview
Before you go, read the USCIS notice one more time. ... in with the person at the desk or window, or follow instructions for checking in with your interview notice ... goes well, the officer simply congratulates the applicant and says something like, "We'll send you a notice ... It involves submitting the Form N-445 that came with the notice, together with an explanation of why ...