Since one of the documents confirming English language skills of at least B1 or B2 level, within the meaning of the Common European Framework of Reference for Languages is a certificate issued by the Interdepartmental Study of Foreign Languages after solving an on-line language test available in the recruitment process. 

To take the test, you must ELECTRONICALLY REGISTER for one of the dates you have chosen, no later than 15 minutes before the starting time of the test. A link to the test will be sent to the e-mail address provided once registration for the date in question has ended. The dates of forthcoming tests are now available on the application form.

The test lasts 90 minutes and consists of 50 questions. To pass you must get 70% of the answers correct. You should see the results immediately after the test.