When you graduate, you receive a diploma. It may be necessary to prove the status of your Dutch diploma abroad. To be able to do this you can legalise your diploma. This is done by the DUO (Dienst uitvoerend Onderwijs). The application procedure can be found on the website of the DUO.
Go to www.ib-groep.nl/International_visitors and then Diploma Assessment.
Juliana van Stolberglaan 1
2595 CA The Hague
T: +31 70 315 15 15