Incazelo
Ukuhlinzeka ngokuthuthwa kwempahla eningi okuhlanganisa izingxenye ezinkulu, imishini namathuluzi, izinsimbi, kanye nokulandelela inqubo yephrojekthi eyenziwe ngokwezifiso, ukuqinisa izixhumanisi zokusebenza, nokuhlinzeka ngesevisi ephelele nephelele yokuthumela ngenqwaba yesitobhi esisodwa.
Izinzuzo zesevisi:
1. Isithwali senqwaba sinethoni encane kanye nokuguquguquka okuphezulu;
2. Isikhala esikhulu sokugcina ekhabetheni lesithwali senqwaba;
3. Izindleko zokuthutha zabathwali abaningi ziphansi uma kuqhathaniswa.