of this business plan and streamlined its services, human and financial resources as well as internal processes during the following years. Post-reform role On the basis of sound finances and in a second wave of programmatic reforms in 2004, UNIDO further focused its activities and technical services directly responding to international development priorities. In an independent assessment of 23 international organizations against a large numbers of criteria, UNIDO was assessed 6th best overall and as best in the group of specialized agencies. In regard of the current UN Reform debate, it can be observed that UNIDO is actively contributing to UN system-wide coherence and cost efficiency. Governance Membership Members of the UN, or of UN specialized agencies, or of the IAEA, are eligible for membership with UNIDO. The process of becoming a Member of the Organization is achieved by becoming a party to the Constitution. Observer status is open, upon request, to those enjoying such status in the General Assembly of the United Nations, unless the UNIDO General Conference decides otherwise. The Conference has the authority to invite other observers to participate in the work of the Organization in accordance with the relevant rules of procedure and the provisions of the Constitution. As of 1 April 2019, 170 States are Members of UNIDO, all of them being UN members. UNIDO Members are divided into four lists. List A consists of all UNIDO countries in the African + Asian Groups of UN (along with Israel, while excluding Cyprus and Japan). List B consists of all UNIDO countries in WEOG group of UN (along with Cyprus and Japan, and excluding Israel). List C consists of all UNIDO countries in GRULAC group of UN. List D consists of all UNIDO countries in the Eastern European group of UN. The lists, originally defined in General Assembly resolution 2152 and the UNIDO Constitution serve to balance geographical distribution of member states' representation on the Industrial Development Board and the Programme and Budget Committee. UNIDO is the one of the two UN specialized agencies where members are separated into groups while the other is IFAD. UNIDO List B, is similar to IFAD List A – which comprises primarily developed countries, while the set of the rest of UNIDO members is similar to the set of the rest of IFAD members – which comprise primarily developing countries. The full lists are as follows: List A (100 members):