1. Olu yilo lwereferensi kuphela.Ayinakusetyenziswa njengesiseko soyilo lomsebenzi woluntu.2. Uyilo lunokulungelelaniswa kwingxoxo nganye phakathi komthengi nomthengisi phambi kokuba isivumelwano sisayinwe.3. Isalathiso se-ovahedi yokuthutha siya kulungelelaniswa ukuqinisekisa ukuba ukukhutshwa kwe-evisceration kukwi-downwind.
