IAS is part of the IAF-MLA Multilateral Recognition Agreement where all the countries participate to create policies for accreditation bodies to follow. This process uses ISO standards that provide global recognition to your certificate.
The MSECB uses ISO/IEC 17021-1 to ensure competent audit teams with adequate resources are following a consistent process and reporting audit results consistently.
It also helps create confidence among regulators, consumers, suppliers, and other stakeholders that certificates granted by one certification body are effectively equivalent to that offered by another.