He mea nui te aro tonu ki te whānuitanga o ngā pāmahana taiao mō te mahi a te pūnaha, te pumau, me te kounga teitei. Nā ngā karaihe whakamahana i ārai i te rerekētanga o ā rātou mahi mā te kore e aro ki te whatu, te mahi ā-pūkaha, me te kore e aro ki te pūkaha i roto i te whānuitanga pāmahana nui. Ka whakarerekē aunoa tōna whirihoranga ina whakanohoia ki ngā pāmahana rerekē.
E 20 tau te roangaru e arotahi ana ki te whakarato i ngā hua whatu tino tika.