This rule simply ensures that the Service will receive full value from the member's promotion for a minimum period, before he can be considered for promotion again.
Lo mthetho uqinisekisa okokuba Umsebenzi uza kufumana ixabiso elipheleleyo kunyuselo lwelungu kwisithutyana esifutshane ngaphambi kokuba angajongelwa ukonyuselwa kwakhona.