You must be 14 to sit for the test.
https://www.psionlinestore.com/faa-uas-drone-test-preparation/
If you take this at a PSI test center, you get your score as soon as you finish the test.
Take the test completion form, go to FAA IACRA, log in...
I've seen people around here saying that you can take the Part 107 quiz as a 14 year old, then get your Part 107 License whenever you turn 16 years old, but that info is from 2022. Can anyone still fact-check this?
And also, what's next after I...