The certificate must meet the following requirements:
The Dutch certificate is obtained on the basis of an exam taken for reading, writing, speaking and listening;
The English certificate was obtained on the basis of an exam taken for reading;
The certificates have been obtained at the language level required for the profession;
The certificates were obtained with a passing grade;
The certificates were obtained no more than two years ago.
The Dutch language certificate has been obtained from a language institute located in the Netherlands. An exception to this is the 'Dutch as a foreign language' test (CNaVT).