The United Accreditation Foundation (UAF) provides accreditation for Validation and Verification Bodies (VVBs) conducting validation and verification activities related to environmental programs and greenhouse gas (GHG) assertions.

This accreditation program is based on the requirements of ISO/IEC 17029 – Conformity Assessment – General Principles and Requirements for Validation and Verification Bodies, together with applicable sector-specific standards including the ISO 14064 series.

Accreditation confirms that validation and verification bodies have the necessary technical competence, impartiality, and processes to perform validation and verification activities in accordance with applicable standards and program requirements.