If you need to provide any documents to the governing body of another country, they should be not only translated but professional legalized. According to the 1961 International Convention for years, simplified way of legalization is a special seal on a document is apostilled. This stamp makes any document legally valid in the territory of other countries. 

 Apostille may be subject to the following documents:

-diplomas; 
-Passport; 
-teaching documents; 
-certificates; 
-certificate of the REGISTRAR; 
-other notary or legal documents and many others.