Ua nānā iki aku ka Bureau of International Recycling (BIR) i ka hoʻohana ʻana i ka hoʻohana ʻana i nā waiwai kūlohelohe a hope i ka hana nui o ka hana hou ʻana. ʻO ka ʻōlelo nui: ua hoʻohui ʻia kahi kumuwaiwai ʻehiku i nā mea waiwai nui ʻeono - ka wai, ka ea, ka aila, ka hau kūlohelohe, nā wahi a me nā ores - nā mea hana hou. Pono ke koi ʻia i nā huahana a me ka ʻihi.