What are the requirements in renewing passport? Do I need to set an appointment online? or just walk-in? Thank you.

Here's the link for the requirements. https://philippineembassy-usa.org/e-passport-renewal/ I just renewed mine on Nov 23, 2020. You need to set an appointment online 30 days in advance. Example: Today is Nov. 30, 2020, the available appointment will be December 30, 2020.. Tip: the appointment system will start showing the available slot starting at 9am and will continue showing one slot for every 10 minutes until 12pm and will resume at 1pm until 3pm. Monday to Friday only. So if the 30th day from the time you visit the website falls on weekend, then there will be no appointment will be shown on the website. Also the renewal of passport is in the consulate building right across the embassy. Here is the address. 1617 Massachusetts Ave NW, Washington, DC 20036

You must make an appointment online. The forms and requirements are posted on the Embassy website. I think appointments are currently about 30 days out.