You have to request access to the following club:
https://www.chess.com/club/uschess
Fill out this form:
https://www.chess.com/news/view/uscf-member-authentication-9266
Then, once the USCF verifies you, you will be able to play in any of the scheduled events:
https://www.chess.com/clubs/forum/view/tournament-schedule
Hello -
I just joined USCF and the email said I can use my PIN to play rated games on Chess.com. I don't see any way to do this - does anyone know how?
Thanks
Madanach