|An Apostille certifies the validity of an Illinois notary public, county clerk, circuit clerk or local registrar. This special certification is accepted by certain foreign
countries as proof that specific documents are "official". Only countries who are members of the HAGUE CONVENTION can receive Apostilles.
Other countries who are not members, will receive a Certificate of Authority. Certificates are similar to the Apostille in that the same information and a small fee
is required as when submitting an application for an Apostille.
The difference between Certificate of Authority and an Apostille, is that Certificates are applied to documents that are to be used in countries that are not
members of the Hague Apostille Convention.