You can take a CEnT of the same type once per macro-period, whether you choose the @HOME or @UNI format.

The macro-periods are:

• November, December, January (first macro-period)
• February, March (second macro-period)
• April, May, June (third macro-period)
• September, October (fourth macro-period).

Let’s take an example::
You have taken a CEnT-S in November 2025 (first macro-period). You will be able to repeat the test from February 2026.

Bear in mind that you can book the new test only from the day after the CEnT you have already booked.