Whakatakotoa hei waihanga i ngā huringa mahi māra me ngā mahi taiao, ko ō mātau pīrera he whakamāmā i te whakauru pūrua me te whakahoki. Ko te whakauru pūrua, te whakapiki, me ngā whakapai tūpato i roto i tētahi atu, e whakanekehia ana ngā mahi whakarereke pūrua, nō reira ka pūmau ki te whakamahi mō te ao poroiti. Ka whakaitihia te whiu me te mate e ngā rau kawe, he pai tōna whakamahi mo ngā kaiwhakaora whenua, ngā kairūnuku, me ngā kaitaiao. E āhei ana ēnei pīrera ki te whakatutuki i ngā pūrua taeata, pūrua pakihiwi, me ngā tūpato pūrua, e whai ana ki ngā whakauru pūrua tūturu me ngā whakahoki.