Certification Bodies

In accordance with the requirements of ISO/IEC 17021, ISO/IEC 17024

Inspection Bodies

in accordance with the requirements of ISO/IEC 17020


in accordance with the requirements of ISO/IEC 17025:2005

US Accreditation Board

USAB is an autonomous non-profitable body responsible for providing accreditation of conformity assessment bodies (USABs) in the fields of certification and inspection. Accreditation by USAB demonstrates the competence and independence of these USABs.

USAB is thought to be the largest independent accreditation body in the world. Established in 2012, the organization has been a persistent pioneer in the field of accreditation, well known and respected for its combination of innovative and user-friendly business acumen and its respect for the vigorous maintenance of integrity and impartiality that is the hallmark of the quality assurance profession.


What is the MLA?

The Multilateral Agreement (MLA) is an agreement between the accreditation boards among themselves that recognizes the equivalence and reliability of accreditation’s and accredited conformity assessment results from the signatory region.

The key prerequisite for receiving MLA status for an accreditation body is a successful assessment as part of the accreditation board’s peer evaluation process.

This process also determines the areas to which the MLA applies. At the global level, the MLA is recognized on a global scale by the IAF and ILAC. This means that test and inspection reports, calibration certificates or certificates from bodies with accreditation from a recognized MLA signatory are also accepted as equivalent by the signatories to the multilateral IAF MLA and ILAC MRA agreements.

Mutual recognition of accreditation

A key objective of the international accreditation network is the mutual recognition of the services and results of accredited bodies in order to prevent technical obstacles and multiple accreditations.

This is made possible by multilateral agreements and treaties (MRA or MLA) between the national accreditation bodies and the international accreditation organisations. It creates both national and international recognition that e.g. each laboratory accredited by USAS is able to conduct certain testing or test types or calibrations in a competent manner.


9 June