Ko Mdcp 21 he papai kai tāpiri e pai ana te utu me te kounga mō ngā kararehe. Kua pakaru ā mātou hua ki ngā paraihe me ngā nutrihau e hiahiatia ana, ā, i hoahoaia kia whakapai ake i te huri kai; nā konei, ka tangatawhai ngā kararehe i ngā painga aronga ki te tikangia. Ko Mdcp 21 he hua e arataki ana ki te kounga me te tautoheketanga. Ka waiho e Mdcp 21 ngā kararehe hei hauora, ā, ka tautoko i te whakahaerenga pūtaiao e tika ana, nā reira ko ia mea e pai ake ana ki ngā kainoho katoa.