IEC - CAB: Conformity Assessment Board > Wind Turbine Certification Advisory Committee (WT CAC)

General information

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Operating as a Program reporting to the IEC Conformity Assessment Board, the IEC WT CAC provides cooperation between managers of industry and its customers and the IEC certification system giving them a measure for strategic planning and strengthening the IEC's relationship with business and national authorities.As the IEC WT conformity assessment develops, the role of the CAC may evolve from advisory to more of a management role, consistent with the IEC Statutes for IEC Conformity Assessment.



The objectives, scope and terms of reference of the Certification Advisory Committee are highlighted below:


 Objectives of Certification Advisory Committee 
  • Provide voice and mechanism for end users to provide input into the certification process;
  • Ensure that application of international standards are uniform and relevant to the end user and a broader community;
  • Bridging the gap between formal engineering due diligence and ad hoc end user due diligence; and
  • Harmonize interpretation of existing standards and certification process.


 Scope of Certification Advisory Committee 

The Certification Advisory Committee has an advisory role and reports to the CAB. Its activities are conducted in close liaison with TC88. The committee shall provide advice to the operating bodies on:

  • Harmonization of requirements for documentation for certification mutual recognition;
  • Need for amendments to procedures and requirements;
  • Interpretation of procedures and requirements for documentation for conformity assessment;
  • Oversight of interpretation of the application of conformance requirements;
  • Prepare rules of procedure and supporting operational documents as necessary; and
  • Review and approval of applications of CBs for the CAC.


 Terms of reference for the Certification Advisory Committee 
  • Meet and discuss interpretation of rules and procedures and formulate recommendations;
  • Publish results of interpretations and conclusions regarding procedures and requirement;
  • Reporting to CAB;
  • Operate in close liaison with TC88;
  • Liaison with participants and accreditation bodies;
  • Facilitating mutual recognition and harmonisation of procedures; and
  • Propose interpretations of IEC 61400 series to TC 88.


 Members (representation of stakeholders) 

“P” Member National Committees of TC 88 nominate experts to comprise the Membership of the WT CAC in order to ensure a balanced representation of CBs, WT suppliers, End Users (customer & authorities). Reporting to the WT CAC are Expert Subcommittees:



The CAC and all its subcommittees are expected to meet at least twice per year for the time being. Additional meetings may be held at the discretion of the Chairmen.


The recommendations from meetings of the Advisory Committee shall be made available to all stakeholders including accreditation institutes.