What Is an IECEx Certification Body (ExCB)?
An IECEx Certification Body (ExCB) is an independent organization approved to assess and certify explosion-protected equipment under the IECEx Certified Equipment Scheme. Acting as the certification authority within the IECEx System, an ExCB reviews technical evidence, evaluates compliance with applicable IEC 60079 standards, and issues IECEx Certificates of Conformity for products that successfully satisfy the certification requirements.
Manufacturers seeking IECEx certification work directly with an ExCB throughout the certification process. The Certification Body reviews the Ex Test Report (ExTR), assesses the manufacturer's Quality Assessment Report (QAR), and determines whether sufficient evidence exists to grant certification.
This article explains what an IECEx Certification Body is, how it differs from an IECEx Testing Laboratory (ExTL), and the important role it plays in the international certification of hazardous area equipment.
Quick Answer
Quick Answer
An IECEx Certification Body (ExCB) is an organization accepted within the IECEx System to certify explosion-protected equipment. An ExCB reviews the Ex Test Report (ExTR), evaluates the manufacturer's Quality Assessment Report (QAR), confirms compliance with the applicable IEC 60079 standards, and issues the IECEx Certificate of Conformity (CoC) when certification requirements have been satisfied.
What Is an IECEx Certification Body (ExCB)?
An IECEx Certification Body is an organization formally accepted by the IECEx System to certify equipment intended for use in explosive atmospheres. Each ExCB operates in accordance with the IECEx Basic Rules and applicable IECEx Operational Documents, ensuring that certification decisions are based on internationally recognized procedures.
Unlike a testing laboratory, an ExCB is responsible for making the final certification decision. It evaluates the complete certification package, including technical testing, quality system assessments, and supporting documentation, before issuing an IECEx Certificate of Conformity.
The Certification Body also maintains oversight of certified manufacturers through periodic quality assessments and certification management activities.
What Does an ExCB Do?
An IECEx Certification Body performs several important functions throughout the certification lifecycle of explosion-protected equipment.
Its primary responsibilities include:
- Reviewing Ex Test Reports (ExTRs).
- Evaluating Quality Assessment Reports (QARs).
- Confirming compliance with applicable IEC 60079 standards.
- Issuing IECEx Certificates of Conformity.
- Maintaining certification records.
- Supporting ongoing surveillance of certified manufacturers.
- Managing certificate revisions when products are modified.
These responsibilities ensure that only equipment meeting the IECEx Scheme requirements receives certification.
Who Can Become an IECEx Certification Body?
Organizations cannot simply declare themselves to be IECEx Certification Bodies. They must successfully complete the IECEx acceptance process and demonstrate competence to perform certification activities within the scope requested.
Acceptance into the IECEx System requires assessment of the organization's technical competence, certification procedures, impartiality, and compliance with applicable IECEx Operational Documents.
Only organizations officially accepted within the IECEx System may issue IECEx Certificates of Conformity.
Examples of IECEx Certification Bodies
Many internationally recognized certification organizations participate in the IECEx Scheme as approved Certification Bodies.
Examples include:
- DEKRA Certification B.V.
- UL Solutions.
- CSA Group.
- Baseefa.
- TÃœV Rheinland.
- TÃœV SÃœD.
- Intertek.
- INERIS.
- LCIE Bureau Veritas.
Each approved ExCB operates within its authorized scope while following the same IECEx certification principles established by the IECEx System.
How Does an ExCB Work with an ExTL?
Although the terms IECEx Certification Body (ExCB) and IECEx Testing Laboratory (ExTL) are often used together, they perform different functions within the IECEx Certification System.
An ExTL performs the technical testing and engineering evaluation of explosion-protected equipment, while the ExCB reviews the technical evidence and makes the final certification decision.
The relationship between the two organizations ensures that certification decisions are based on independent technical assessments performed in accordance with the applicable IEC 60079 standards.
| IECEx Testing Laboratory (ExTL) | IECEx Certification Body (ExCB) |
|---|---|
| Performs product testing. | Reviews certification evidence. |
| Prepares the Ex Test Report (ExTR). | Evaluates the ExTR. |
| Conducts technical assessments. | Makes the certification decision. |
| Provides engineering evidence. | Issues the IECEx Certificate of Conformity. |
Together, the ExTL and ExCB provide the technical and certification framework that supports international acceptance of IECEx-certified equipment.
How Does an ExCB Issue an IECEx Certificate?
Before issuing an IECEx Certificate of Conformity, the Certification Body evaluates the complete certification package submitted by the manufacturer.
A typical certification workflow includes:
- The manufacturer submits an application for certification.
- An IECEx Testing Laboratory (ExTL) performs testing and prepares the Ex Test Report (ExTR).
- The manufacturer's quality management system is assessed through a Quality Assessment Report (QAR).
- The ExCB reviews the ExTR, QAR, and supporting documentation.
- If all certification requirements have been satisfied, the IECEx Certificate of Conformity is issued.
This independent review process helps ensure that certification decisions remain objective, consistent, and technically justified.
What Documents Does an ExCB Review?
Certification decisions are based on a comprehensive review of technical and quality documentation rather than a single report.
The ExCB typically evaluates:
- Ex Test Report (ExTR)
- Quality Assessment Report (QAR)
- Engineering drawings
- Product specifications
- Explosion protection marking
- Applicable IEC 60079 standards
- Manufacturer's quality documentation
- Previous certification records where applicable
Only after reviewing all relevant documentation can the Certification Body determine whether the product satisfies the IECEx Scheme requirements.
Can an ExCB Also Operate an ExTL?
Yes. Many internationally recognized certification organizations operate both an IECEx Certification Body (ExCB) and an IECEx Testing Laboratory (ExTL).
Although both functions may exist within the same organization, they operate under defined procedures that preserve technical competence, impartiality, and the integrity of the certification process.
This arrangement enables efficient coordination between product testing and certification while maintaining compliance with the IECEx Operational Documents.
Benefits of Working with an Approved ExCB
Choosing an approved IECEx Certification Body provides manufacturers with access to an internationally recognized certification process supported by independent technical assessment.
Key benefits include:
- Internationally recognized certification.
- Independent third-party evaluation.
- Consistent application of IEC 60079 standards.
- Improved acceptance in international projects.
- Confidence for end users and regulatory authorities.
- Support for maintaining certification throughout the product lifecycle.
Working with an approved ExCB also helps manufacturers demonstrate their commitment to producing equipment that meets internationally accepted explosion protection requirements.
Common Misunderstandings About IECEx Certification Bodies
An ExCB Performs Product Testing
Not directly. Product testing is normally carried out by an IECEx Testing Laboratory (ExTL). The ExCB reviews the Ex Test Report (ExTR) prepared by the ExTL and uses that technical evidence when making certification decisions.
An ExCB Is the Same as an ExTL
No. Although many organizations operate both an ExCB and an ExTL, the two functions have different responsibilities. An ExTL performs technical testing, while an ExCB evaluates the certification evidence and issues the IECEx Certificate of Conformity.
Any Certification Company Can Issue an IECEx Certificate
No. Only organizations that have been formally accepted into the IECEx System as Certification Bodies are authorized to issue IECEx Certificates of Conformity.
An ExCB Guarantees Regulatory Approval Worldwide
No. IECEx certification is internationally recognized, but individual countries may still impose additional legal or regulatory requirements before equipment can be installed or placed on the market.
Frequently Asked Questions (FAQ)
What is an IECEx Certification Body (ExCB)?
An IECEx Certification Body (ExCB) is an independent organization approved within the IECEx System to certify explosion-protected equipment and issue IECEx Certificates of Conformity.
What is the difference between an ExCB and an ExTL?
An ExTL performs product testing and prepares the Ex Test Report (ExTR), while an ExCB reviews the technical evidence, evaluates the Quality Assessment Report (QAR), and makes the final certification decision.
Who can issue an IECEx Certificate of Conformity?
Only an approved IECEx Certification Body (ExCB) participating in the IECEx Certified Equipment Scheme is authorized to issue an IECEx Certificate of Conformity.
Can one organization operate both an ExCB and an ExTL?
Yes. Many internationally recognized certification organizations operate both functions, provided they maintain the competence, impartiality, and procedures required by the IECEx System.
How can I verify whether an organization is an approved ExCB?
The official IECEx website maintains a directory of approved IECEx Certification Bodies participating in the IECEx Certified Equipment Scheme.
Conclusion
An IECEx Certification Body (ExCB) plays a central role in the IECEx Certified Equipment Scheme by evaluating technical evidence, reviewing the manufacturer's quality assessment, and issuing IECEx Certificates of Conformity for equipment that complies with the applicable IEC 60079 standards.
Working together with IECEx Testing Laboratories (ExTLs), Certification Bodies help ensure that explosion-protected equipment is independently assessed, consistently manufactured, and internationally recognized for use in hazardous areas. Understanding the role of an ExCB also helps engineers, manufacturers, procurement specialists, and inspectors better understand how IECEx certification is achieved and maintained.
Technical Review
Technical Review
This article has been technically reviewed against the IECEx Certified Equipment Scheme, IECEx Basic Rules, IECEx Operational Documents (OD Series), and the certification framework supporting equipment intended for use in explosive atmospheres.
The guidance explains the responsibilities of an IECEx Certification Body (ExCB), its relationship with IECEx Testing Laboratories (ExTLs), and its role in reviewing Ex Test Reports (ExTRs), Quality Assessment Reports (QARs), and issuing IECEx Certificates of Conformity. Readers should always consult the latest IECEx documentation and applicable IEC 60079 standards for current certification requirements.
References
- IECEx Certified Equipment Scheme – Official IECEx Documentation.
- IECEx Basic Rules.
- IECEx Operational Documents (OD Series).
- IEC 60079 Series – Explosive Atmospheres.
- ISO/IEC 80079 Series.
- IECEx Online Certificate Database.
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