Iran University of Medical Sciences (IUMS) was established as a medical centre in 1974. It started by gathering several thousand scientific journals and books in different branches of medical sciences to establish a library. Because of its direct communication with the American Medical Information Center, it was considered one of the most important medical centres at international level. Activities commenced in 1976 with Iranshahr Clinic (Shahid Rahnemon Hospital), the only affiliated hospital. Thereafter, the School of Nursing and Allied Medicine was established at the undergraduate and graduate levels. The centre officially became the Iran University of Medical Sciences in 1986. In 2010, IUMS was merged with Tehran University of Medical Sciences. But in 2013, the health ministry announced that the university would be made independent again. With a 40-year background and 872 faculty members, IUMS is considered one of the main universities of medical sciences in the country. It operates eight schools, 27 research centres, two institutes and 10 teaching and seven non-teaching hospitals in Tehran, which are run by the Board of Trustees and Administrative Office. IUMS is accredited by the Accreditation Services for International colleges (ASIC) and received the International Accreditation Certificate 2014-2018.