The Watchtower Society likes to tell its members that ALL JWs are Ordained Ministers, but in reality only Elders and Ministerial Servants can obtain a Certificate of Ordained Minister from the Watchtower Society. Even then one must specifically state the reason the certificate is needed. Bottom line, the Watchtower Society makes it very difficult for any JW to receive such a certificate.
p. 4-1, paragraph 5
CERTIFICATE FOR ORDANED MINISTER
Currently appointed elders or ministerial servants in need of a certificate verifying their ordination may request one from the branch. When requesting a certificate, the individual will specifically state the reason the certificate is needed. Often a letter signed by the elders or the presiding overseer of the congregation will suffice to verify one's ordination. If a Certificate of Ordained Minister is sent by the branch, it should be signed by the Branch Committee coordinator or someone else having authority to do so. It may be notarized if advisable. If it is necessary to specify the date of ordination, then show the date of baptism.