Dear Editor-in-Chief: One way to improve the quality of hospital services is accreditation and, as a strategy for improving services, many countries have launched their national accreditation system (1, 2). Accreditation, as an independent voluntary program, was established in 1917 in the United States by the Joint Commission on Accreditation of Healthcare Organizations (JCAHO) for evaluating hospitals. In 1998, its international branch called the Joint Commission International (JCI), aimed at the development of a set of accreditation standards, began. Currently, this program is the most comprehensive accreditation one in the world (3).