ISO/IEC 17025 Academy
2017 current edition · flagshipEight accreditation bodies, eight dense rule sets. This academy compresses them into one short path: the 4-tier document skeleton, 119 compliance checkpoints, the document template library (44 forms free forever), and body-by-body breakdowns of what each adds beyond the ISO/IEC 17025 text.
The eight accreditation bodies, decoded
What does each body add beyond ISO/IEC 17025, and which documents does it mandate? Start with the cross-body cheat sheet, then open the card of your target body for the full deep-read — complete Chinese and English editions, free to read, no signup.
Eight accreditation bodies at a glance
A side-by-side read of what Global ACI / CNAS / A2LA / UKAS / NVLAP / NATA / SINGLAS / NABL each add beyond ISO/IEC 17025 — which clauses are unique, which documents are mandatory. One sheet instead of eight websites.
Global ACI · Specific requirements beyond ISO/IEC 17025
Global ACI (formerly ILAC, whose role it assumed on 1 Jan 2026) is not an accreditation body but the global mutual-recognition framework (MRA). Before claiming MRA on reports, master P8 (mark usage), R7 (combined marks) and P9 (PT policy) — legacy ILAC document numbering still applies.
CNAS · Specific requirements beyond ISO/IEC 17025
CNAS layers Chinese-language controlled documents on 17025: CL01/CL01-G application requirements, PT frequency, intermediate checks and auditor competence — mapped clause by clause for CNAS assessment.
A2LA · Specific requirements beyond ISO/IEC 17025
A2LA adds traceability policy, PT policy, record-retention periods and witness-assessment rules — the clauses most likely to raise nonconformities when entering the North American market.
UKAS · Specific requirements beyond ISO/IEC 17025
UKAS sharpens 17025 through its GEN/LAB/TPS publications: decision rules in LAB 48, report wording in TPS 53, uncertainty per M3003 — UK-market reports usually trip on exactly these details.
NVLAP · Specific requirements beyond ISO/IEC 17025
NVLAP (under NIST) operationalizes 17025 via the Handbook 150 series: dedicated clauses on PT, metrological traceability and certificate/logo use — critical for calibration labs.
NATA · Specific requirements beyond ISO/IEC 17025
NATA layers its SAD Standard Application Document and GAC/GAG general criteria and guidance on top of 17025: equipment assurance, traceability, PT and equipment checks each carry dedicated clauses — find your field's SAC (Specific Accreditation Criteria) first and NATA assessment gets far easier.
SINGLAS · Specific requirements beyond ISO/IEC 17025
SINGLAS follows the Global ACI framework with local additions: mark usage, subcontracting and conformity-statement wording — walk through them before applying in Singapore.
NABL · Specific requirements beyond ISO/IEC 17025
For labs targeting the Indian market: what NABL adds on top of ISO/IEC 17025 — infrastructure, personnel competence, internal-audit cadence and on-site assessment points, with real nonconformity examples.
Global ACI TECH-1-009Global ACI Policy for Uncertainty in Calibration（原 ILAC P14）
CNAS-CL01:2018Accreditation Criteria for the Competence of Testing and Calibration LaboratoriesCNAS-CL01-G001:2024Application Requirements for CNAS-CL01CNAS-GL011Guidance on Internal Audits for Laboratories and Inspection BodiesCNAS-GL012Guidance on Management Reviews for Laboratories and Inspection BodiesCNAS-GL042Guidance on Intermediate Checks of Measuring Equipment
A2LA R205General Requirements for AccreditationA2LA R101General Requirements: Accreditation of CABsA2LA R102Conditions for AccreditationA2LA R103General Requirements: Proficiency TestingA2LA R105Reference to A2LA Accredited Status
NIST HB 150-2020upd1NVLAP Procedures and General RequirementsNIST HB 150-2-2024NVLAP Calibration LaboratoriesNIST HB 150-1-2021NVLAP Energy Efficient LightingNIST HB 150-3-2025Asbestos Fiber AnalysisNIST PG 17-2024Expiration as Voluntary Termination
UKAS GEN 1General Requirements for AccreditationUKAS GEN 4Flexible ScopeUKAS GEN 6Use of Accreditation Symbols & MarksOPSSNational Accreditation Mark ConditionsUKAS LAB 5Calibration
NATA SAD 2017Supplementary Accreditation DocumentNATA GAC TraceabilityMetrological Traceability PolicyNATA GAC PTProficiency Testing PolicyNATA GAC Equipment AssuranceEquipment Assurance & In-house CalibrationNATA GAG BalancesUser Checks of Balances
SINGLAS-001General Criteria for SAC-SINGLAS AccreditationSINGLAS-006Metrological TraceabilitySAC-02Use of SAC MarkPROF-001Proficiency TestingTechGuide-1Estimation of Uncertainty (Testing)
NABL 100BGeneral Criteria for Testing LabsNABL 129Calibration Specific CriteriaNABL 130Field / Mobile LaboratoryNABL 131Terms & ConditionsNABL 133Use of NABL Symbol
Lab Journal
Only what checks out against primary sources for this standard: edition updates, accreditation-governance changes, and rumor debunking. Every piece carries a fact-check appendix.
Other academies
Resources on this page are compiled from publicly published accreditation-body documents (references, titles and paraphrases only — no verbatim text), for internal preparation and study only; they do not constitute accreditation-body decisions or legal advice. ISO/IEC 17025 is a trademark of ISO/IEC.