Which type of certificates should I give to participants once a course is completed?

Which type of certificates should I give to participants once a course is completed?

Certificates of Completion: A Certificate of Completion is given when participants attend a live course or broadcast of a live course. AP must verify full attendance of all participants prior to issuing certificates.  Certificates may not be given for partial credit.

Certificates of Achievement: A Certificate of Achievement is given for home study and asynchronous distance learning courses for which participants are required to  pass a test (written or practical) at the end of a course.