We went thru this for our daughter last year. Made appointment at local post office. Getting appointment was difficult. They fill up so quickly and only go out so far. We realized quickly that we had to get up early in the morning in order to grab an appointment. When we got an appointment, it was a month out. There is paperwork to fill out ahead of time and they want you to bring a passport photo. Both parents had to be present and I don't remember everything they wanted, document wise, but we did bring her old passport, birth certificate, our marriage license...you name it, I had it. The one thing I do remember they asked for was a photo ID and I was a little surprised at that because it wasn't on the paperwork and my daughter is 16. Luckily, she has a driver's permit and I had that on hand. When we did this is November of 2021, it was all the talk how far behind they are and getting passports is taking a lot longer than usual. On some papers, the lady crossed out the usual time line and put in 10 - 12 weeks. We paid for expedited just in case. I think it came in January 2022, maybe late December 2021. I'm pretty sure they took only a check as payment. Go on line, there's a lot of information there.