Apostille - if a diploma/ certificate has been issued by an institution working in an educational system of the country participating in The Hague Convention of 5th October 1961 (Law Gazette 112 of 2005 position 938 and 939), the legalization is carried out in a form of "Apostille" placed in the document or attached to it. "Apostille" may be placed on the copy of the certificate testified by the notary public or attached to it.

List of member countries
of the Hague Apostille Convention is HERE