Irhasi yendalo, engenambala, engenavumba, kunye non-ityhefu, iqulathe ubukhulu becala imethane kwaye isesichengeni kakhulu kuqhushumbo xa idibana namadangatye kwiindawo ezivaliweyo..
Phantsi kweemeko eziqhelekileyo, ukuba ukuxinwa kweegesi ezinokutsha kwindawo evaliweyo kudlula umda ophantsi oqhumayo ngaphezu 10%, kuthathwa njengenqanaba eliyingozi kwaye ukungena kufuneka kuphetshwe.