I-NLS isebenza njengendlela yenkxaso yeelwimi zobuchule zikaRhulumente ngokuthi yenze inguqulelo yamaxwebhu asemthethweni kwiilwimi zonke ezisemthethweni. Iinkonzo zesigama zayo zinceda ngenkqubela kunye nohlaziyo lobuchule boluhlu lwamagama lweelwimi ezisemthethweni. Imisebenzi yoyilo lweelwimi iquka ukucetyiswa koRhulumente kwinkqubela yenkqubo yolwimi kwakunye nokuzalisekiswa bobuchule bokuphatha umcimbi.