Certificates for a limited time period, usually for three years, are issued by an accredited certification body. In order to keep the certificate valid, a periodic audit is performed, typically once a year. If fundamental deviations from the standard requirements are discovered, the extreme measure of the certificate withdrawal can be applied. This is a very rare, exceptional and unpleasant situation. Therefore, when a company decides to implement and follow an ISO standard, it is a voluntary commitment to continuous improvement and development, which is worth the company’s effort.