The International Development Association (IDA) was established in 1960 and is headquartered in Washington D.C. It provides concessional loans and grants to the world's poorest developing countries. IDA has 173 member countries and supports projects in 82 countries, especially related to health, education, infrastructure, agriculture, and economic development. Eligibility for IDA support depends on a country's poverty level, inability to access private capital markets, and policy performance. Currently, IDA provides assistance to 82 eligible countries, including 64 IDA-only countries and 18 blend countries that receive some support from IDA and the International Bank for Reconstruction and Development.