Schools/Organizations - Group Registration: If you wish to register multiple staff using one transaction, scroll to the bottom of this page. If you need to use a PO before purchasing, email a list of the names and emails of the staff you wish to register to firstname.lastname@example.org. We will register those staff and send you an invoice with a PO via email. You can the CAC mail a check at your convenience. If you have questions, contact Dave Buck at 423-531-6961 opt 4.