IOM is part of the UN System in Sri Lanka and formally became a United Nations related Organization at the UN General Assembly in September 2016. Sri Lanka became a Member State of IOM in 1990 and IOM established its presence in the country in 2002. The IOM Sri Lanka Mission currently counts over 100 staff distributed among its Head Office in Colombo, Inbound and Outbound Migrant Health Assessment Centres & an Operations Centre in Colombo, and three Sub-Offices located in Jaffna, Kilinochchi and Batticaloa.