New type of Dimona 'ALT' for apprentices

Author: Jonas Verplanken (Legal Expert)
Read time: 2min
Publication date: 12/06/2023 - 14:12
Latest update: 12/06/2023 - 14:13

The NSSO provides a new type of Dimona for apprentices in alternate training. The Dimona ALT will have to be used from the beginning of the new school year in all regions.


Apprentices in alternate training who meet the definition of apprentice are currently indicated by the Dimona "OTH," just like regular employees. This is being changed at the request of Flanders, with the intention of being able to identify apprentices when granting family benefits.

Dimona ALT

The Dimona ALT will have to be used from 1 September 2023 for apprentices in all regions if they meet the NSSO definition of apprentice.

Definition of apprentice:

Apprentice means any person who is connected to an employer by an agreement as part of alternate training. These are training programmes that meet the following 6 conditions (cumulative):

  1. The training consists of part conducted on the work floor and part at an educational or training institution. These two parts are aimed at achieving a training plan and, to this end, are complementary of the other and alternate on a regular basis.
  2. The training leads to a vocational qualification.
  3. The "work" part consists of an average of at least 20 hours per week on an annual basis, without taking into account public holidays and holidays.
  4. The "learning" part amounts to at least:
    • 240 class hours for part-time students and
    • 150 class hours for young people who are no longer in part-time compulsory education,
  5. Both parts (work/learn) are carried out under a contract signed by the employer and the young person.
  6. The contract provides for a financial compensation to be paid by the employer and to be considered as remuneration.


For JC 124 (construction sector): these are already currently declared with another type of Dimona 'RTA'. This deviation will be retained.


Source: NSSO

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