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Re-certification procedure


The deadline for doing the RESCert refresher training has been changed in Flanders. In this regard, please refer to Article 8.5.1 of the Energy Decree (§7, from paragraph 10 onwards). The re-certification procedure is not yet enshrined in the legislation of the Walloon Region and the Brussels-Capital Region. Refresher training can be done at the earliest two years before the expiry date of the initial certificate and no later than two years after the expiry date of the certificate.

If your certificate has not yet expired, the renewal procedure (link) applies.


The re-certification procedure applies only:

  • to people who have held a certificate of competence in the recent past (in the last two years);
  • to those who pass the refresher examination in an examination centre recognised by the Flemish Region.


This change does not affect the validity of your initial certificate. Your certificate is not valid for a further two years because of this change.


Refresher training

The refresher training consists of an interactive presentation and a question-and-answer session. The duration of the refresher training is approximately three hours and covers the most important fundamental aspects and new technological developments. The course also provides an update on regional legislation and information on good practice. You get the material for the refresher course in advance and you are expected to go through it beforehand. During the interactive presentation, you may ask all the questions you want after reading through the refresher course.

Refresher training is developed and organised for each category of certificate of competence.

Refresher training courses are organised by Flemish Region in recognised training centres that are already recognised by VEKA to organise basic training courses. You can find the list of accredited centres (for basic and refresher training) here

Former certificate holders who obtained their basic certificate previously under Walloon or Brussels legislation can follow the re-certification procedure by doing refresher training in the Flemish Region.

To date, the Walloon Region and the Brussels-Capital Region have not yet transposed the re-certification procedure into their legislation. It is therefore not possible, for the time being, to complete the re-certification procedure via a refresher course organised at an examination centre recognised by the Walloon Region or the Brussels-Capital Region.

Accordingly, it is not yet possible to have a re-certification at a Walloon or Brussels examination centre, but if you still hold a valid certificate, you can follow the renewal procedure.


Re-certification procedure

  1. You register for refresher training at a training centre recognised by the region to organise RESCert training courses.
    Note: you can do a refresher training course
    • During the last two years of validity of your initial certificate (link to the recycling procedure), or
    • if your initial certificate expired within the last two years.
  2. You study the refresher course at your own pace.
  3. You follow the interactive refresher session in the training centre. Participation in the recycling session is mandatory.
  4. If you pass the refresher exam following the training, you receive a certificate from the examination centre confirming that you passed the exam.
  5. If you pass the exam, you must apply to RESCert for a certificate within 12 months of the refresher exam and in the last two years before expiry of the certificate. To do this,
    • Log in to the app using your personal account (link)
    • Click on the option Re-certification. The online application procedure is available in Dutch and French.
    • The administrative cost of re-certification is EUR 325.13, excluding VAT. This price is indexed every year. You receive the invoice within 10 working days of receipt of payment.
    • When applying online, you must provide your certificate confirming that you have successfully completed the refresher training.
  6. You receive an update on the status of your application within 20 working days of payment confirmation.
  7. If the application is approved, you receive your new certificate with a new RESCert number by email. Within 24 hours, your name appears on the list of certified installers.


What should you do if your certificate has been out of date for more than two years?


If your initial certificate has been out of date for more than two years, you can no longer take part in the refresher training or complete the online re-certification procedure.

In this case, to obtain a new certificate, you must re-sit the examination for the basic training. If you pass, you have a maximum of 12 months after this exam to repeat the initial certification procedure (link) with RESCert. In this case, it is not necessary to do the full basic training again.


Last change: 2 October 2026