When will I know if my child is off the waitlist for a camp/class?

Typically, a camp or class will notify you by email if a spot is available. The email may be an invoice from ActivityHero inviting you to pay now in order to confirm a spot. 
If you no longer wish to be on the waitlist, you can be removed by going to the My Registrations page and choose the Waitlisted & Pending section. Then you can click the button to remove your family from the waitlist.