In universities in the United Kingdom students' unions are constituted under Section 2 of the Education Act 1994. The ultimate purpose of students' unions is to democratically represent the interests of their members. Students who resign their membership may still use union social facilities provided (often the main or only such facilities available) since they are for the benefit of the students of the institution, not just union members. The vast majority of UK students' unions are affiliated with the National Union of Students (NUS).