Step advancement is based on the following periods:
1st step: two years ;
2nd step: two years;
3rd step: two years;
4th step: two years;
5th step: two years;
6th step: two years;
7th step: two years;
8th step: two years;
9th step: four years;
10th step: four years;
11th step: four years;
12th step: four years.
Advancement to a higher step is decided by the Director General of the Centre National de Gestion.