ISO/IEC 17043:2023 - Lead Assessor for Proficiency Testing Providers Quiz 01 26Jul25 - Practice Quiz

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When assessing a proficiency testing provider that conducts interlaboratory comparisons across multiple continents, what is the most critical factor to verify regarding its accreditation to ensure compliance with ISO/IEC 17043:2023, specifically concerning the recognition of its accreditation status in diverse regulatory environments?

The accreditation body is a signatory to the International Laboratory Accreditation Cooperation (ILAC) Multilateral Arrangement (MLA).

The accreditation body has a formal agreement with the national metrology institute of the country where the PT provider is headquartered.

The accreditation body's own quality management system is certified to ISO 9001:2015.

The accreditation body publishes a comprehensive list of all PT schemes it has accredited globally.

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