: : Enhanced capacity of Government institutions ( Southern Sudan Relief and Rehabilitation Commission , Humanitarian Aid Commission ) and asylum institutions ( Office of the Commissioner for Refugees ) to provide durable solutions for the return of displaced populations UNHCR ( returns ) ; integrated DDR Unit ( DDR ) International Organization for Migration ( IOM ) , UNDP , WFP , United Nations Population Fund ( UNFPA ) , UNICEF , UNV , UNEP : : Environmental criteriaa integrated into the absorptive capacity assessments of the receiving area as part of return and reintegration programming Government of National Unity , Government of Southern Sudan : Northern and Southern DDR Commissions , Northern Sudan Mine Action Commission , Southern Sudan Demining Commission , Ministry of Health , Southern Sudan Relief and Rehabilitation Commission ; Ministry of Education , Science and Technology and state governments