Iinkonzo zokuthengwa kwempahla ziyilelwe ukunceda amashishini afumane iimpahla kunye neenkonzo ngokufanelekileyo nangeendleko ezifanelekileyo. Ezi nkonzo zibandakanya ukhetho lomthengisi, uthethathethwano ngexabiso, ulawulo lwekhontrakthi, kunye nokuphuculwa kwekhonkco lokubonelela. Ngokusebenzisa ubuchule boshishino kunye nobuchwephesha, iinkonzo zokuthengwa kwempahla ziqinisekisa ukuba amashishini afumana elona xabiso lilungileyo, agcine imigangatho ephezulu yomgangatho, kwaye anciphise umngcipheko wokusebenza, okuvumela iinkampani ukuba zigxile kwimisebenzi yazo engundoqo ngelixa zifezekisa ukugcinwa kweendleko ezibalulekileyo kunye nokusebenza kakuhle.