The resources required to service the normative intergovernmental processes will be considered by the General Assembly in the context of its consideration of the proposed programme budget for the biennium 2012-2013 . The budget was prepared on the basis of the harmonized results-based-budgeting and cost classification methodology applied by the United Nations Development Programme ( UNDP ) , the United Nations Children 's Fund ( UNICEF ) and the United Nations Population Fund ( UNFPA ) .