Accreditation is the process in which certification of competency, authority, or credibility is presented.Accreditation processes are used in a wide variety of fields:Many accreditation bodies, such as IAS, operate according to processes developed by the International Organization for Standardization (ISO) as specified in ISO/IEC 17011. Accredited entities in specific sectors must provide evidence to the accreditation body that they conform to other standards in the same series:Americas