As part of the database upgrade, CDHO will no longer offer wallet certificates for registrants. CDHO has encountered instances of illegal practice using forged wallet certificates. The best way for registrants, employers, and the public to verify that an individual is registered with CDHO is to check Find a Registered Dental Hygienist. This offers the most up-to-date information and users can subscribe to email notifications for any changes to a registrant’s status.