Chile is one of 22 countries to have signed and ratified the only binding international law concerning indigenous peoples, the Indigenous and Tribal Peoples Convention, 1989. It was adopted in 1989 as the International Labour Organization (ILO) Convention 169. Chile ratified it in 2008. A Chilean court decision in November 2009 considered to be a landmark ruling on indigenous rights and made use of the convention. The Supreme Court decision on Aymara water rights upheld rulings by both the Pozo Almonte tribunal and the Iquique Court of Appeals, and marks the first judicial application of ILO Convention 169 in Chile.