IATF 16949:2016 builds on ISO 9001:2015 with automotive-specific requirements for measurement. Clause 7.1.5.1.1 (Measurement systems analysis) requires statistical studies — typically Gage R&R per the AIAG MSA reference manual — to analyze the variation in the results of each type of inspection, measurement, and test equipment identified in the control plan. Clause 7.1.5.2.1 (Calibration/verification records) specifies a detailed record set beyond the ISO 9001 baseline. Clause 7.1.5.3.1 (Internal laboratory) requires an internal lab to have a defined scope and to meet ISO/IEC 17025 or demonstrate capability accepted by the customer. MSA methods and acceptance criteria must follow the AIAG manual unless otherwise agreed with the customer.
IATF 16949 requires MSA studies on the measurement systems identified in the control plan — not just a chosen few. For variable data this is normally a Gage R&R study following the AIAG MSA manual, evaluated against the AIAG acceptance criteria (%GRR under 10% acceptable, 10% to 30% conditional, over 30% unacceptable, with ndc of 5 or more). Attribute measurement systems use attribute agreement analysis instead. The studies, methods, and acceptance criteria must align with the AIAG reference manual or with customer-specific requirements. Our Gage R&R study procedure covers the method in detail.
IATF 16949 enumerates specific records beyond ISO 9001. These include revisions following engineering changes; any out-of-specification readings as-received during calibration or verification; an assessment of the risk of the intended use of the product caused by the out-of-specification condition; notification to the customer if suspect product or material has been shipped; statements of conformity to specification after calibration; and verification that the software version used for product and process control is as specified. The as-received out-of-specification assessment is essentially the automotive expression of the validity-of-previous-results obligation.
If an organization performs calibration or testing in its own internal laboratory, Clause 7.1.5.3.1 requires that laboratory to have a defined scope documented in the quality management system, and the lab must meet the requirements of ISO/IEC 17025 or demonstrate technical competence that the customer accepts. External laboratories used for calibration must be accredited to ISO/IEC 17025 (or to a national equivalent) with the relevant scope, unless the customer approves otherwise.
Recurring findings include MSA studies not performed for every measurement system in the control plan; using acceptance criteria other than the AIAG criteria without customer agreement; missing the as-received out-of-specification assessment when equipment is found out of tolerance; an internal laboratory with no defined scope; and using an external calibration provider that is not ISO/IEC 17025 accredited for the relevant scope. Each maps directly to a specific IATF clause and is straightforward to close with disciplined records.
CalibrationOS provides integrated Gage R&R per the AIAG manual with automatic acceptance evaluation for the control-plan measurement systems, and it captures the specific Clause 7.1.5.2.1 records — including as-received out-of-specification readings and the reverse-traceability impact assessment that follows them. Calibration records and the traceability chain can be organized to match a defined internal-laboratory scope, supporting both the MSA and records requirements in one system.
IATF 16949 requires measurement systems analysis on control-plan equipment (Clause 7.1.5.1.1), a specific set of calibration/verification records (7.1.5.2.1) including as-received out-of-specification assessments, and internal laboratories with a defined scope meeting ISO/IEC 17025 or customer-accepted competence (7.1.5.3.1).
Statistical studies — typically Gage R&R per the AIAG MSA manual for variable data, or attribute agreement analysis for attribute data — on each measurement system in the control plan, evaluated against AIAG acceptance criteria or customer-specific requirements.
The AIAG MSA criteria: %GRR below 10% is acceptable, 10% to 30% is conditionally acceptable depending on application, and above 30% is unacceptable, with a number of distinct categories (ndc) of 5 or more.
Records of revisions after engineering changes, as-received out-of-specification readings, the risk assessment of intended use from any out-of-specification condition, customer notification if suspect product was shipped, conformity statements after calibration, and verification of the software version used for product/process control.
An internal laboratory must have a defined scope and either meet ISO/IEC 17025 requirements or demonstrate technical competence accepted by the customer. External calibration labs generally must be ISO/IEC 17025 accredited for the relevant scope unless the customer approves otherwise.
This article is licensed CC BY-SA 4.0. Share, adapt, and reuse with attribution to calibrationos.com/learn/iatf-16949-calibration-msa.
Get expert insights on compliance, uncertainty, and measurement best practices.
Start managing calibrations in minutes. Free plan with 25 assets — no credit card.
Get Started Free