For FAQs and current status of services and policies see UW Libraries Operations Updates
An NGO, or Non-governmental Organization, is an organization focused on humanitarian issues, often social problems with a political aspect (eg. human rights, relief services, women's rights).
An IGO, or international inter-governmental organization, is a group of sovereign states, often established through a treaty, with mutual intersests which works toward a unified goal.
A few of the most prominent examples of IGOs: