The EmployeeCertificationTypeDisableList property determines whether a user can edit or delete certain employee certification types (based on their system name choice codes) as identified in this property.
Admin Tools location:
Config Option > User > User_UserSetting
The system name of choice codes (single or multiple) entered in Certification Type separated by comma (without space).
Where the setting is reflected...
Certification and Certifications subsection of the Employee section.