The certificate is valid for 3 years, but it would have to make annual Auditor's. To keep track of an organization's systems that maintain good or not.
The certificate will be valid certificate three years, it will be reviewed annually Auditor. To keep track of the organization that maintains the standards or not.
The certificate will be certified 3 age years. But the detection of Auditor every year. To follow the system of organization that keep the standard or not.