There are several User Permissions that control the ability to set up, view and manage Certifications.
Go to Tools > Manage Users & Permissions > User IDs (click on a UserID) > User Permissions (left) to set the permissions.
These are the permissions related to Staff Certifications:
|Certifications tab and report|
|Tools||Edit Drop-down List|
See Permissions for Jackrabbit Users for more information.