1- Joining of legal periods of participation to Section III

2- Joining of legal participation periods to Section V

3- Combination of previous service periods in respect of which retirement compensation has been paid

4- Joining of previous service or activity periods to Section V

5- Joining of military service periods to civil service periods and vice versa

6- Combination of the previous service periods that ended in the Private and Oil Sector before  01.10.1977

7- Combination of the service periods prior to obtaining the Kuwaiti nationality

8- Combination of periods prior to mayors

9-  Combination of actual previous periods in complementary security