There is a standard tuition for each class, payable when mailing in the Registration Form.  See Registration for the current tuition.

Most teachers charge a lab fee to cover consumable product expenses, payable to the teacher on the first day of classes. 

A late fee
is assessed on all registrations that are postmarked after the
registration deadline.  In the event of mailing in a late registration,
please include a late fee with the Registration Form. 

See Registration for more details.