How to Start FCC Certificate #4 - Pairing with dev on building project from scratch

Hey all, I’m new to FreeCodeCamp, however I am a expreienced web developer. I see that that FreeCodeCamp offers a fourth certificate that pairs you with another developer to work on a non profit project from scratch. I am wondering what are the requirements to start this? Do I have to get all 3 certificates first? I don’t see this fourth certifcate on the index of lessons.