What is the Module D Standard?

Module D is a conformity assessment module defined under the European Union New Approach Directives that focuses on a quality assurance system based on the production process. It is generally implemented in conjunction with Module B (type examination) and Module C (conformity assessment).

In this context, the following are evaluated:

• Production quality management system,

• Process control mechanisms,

• Product traceability structure,

• Management of quality records,

• Production conformity processes,

• Surveillance and audit activities

are evaluated.

Module D is based on quality consistency and systematic control in production.

How is a Module D Certificate of Conformity obtained?

The Module D conformity assessment process is carried out through an examination of the quality management system at the production facility and periodic surveillance audits.

The process generally consists of the following stages:

• Evaluation of the quality management system,

• Control of production processes,

• Examination of the documentation system,

• Verification of production records,

• Verification of the traceability structure,

• Examination of internal audit processes,

• Conducting periodic surveillance audits

Upon confirmation of the production system's conformity following the assessment, a Module D conformity certificate is issued.

Why is Module D applied?

The primary objective of Module D is to ensure that the production process is carried out under continuous quality assurance. This system focuses on the reliability of the production process rather than solely on final product inspection.

Reasons for implementing this module include:

• Standardizing production processes,

• Ensuring quality consistency,

• Increasing product reliability,

• Supporting compliance with CE certification (Module CE / C process),

• Strengthening production traceability,

• Ensuring compliance with European Union regulations.

What are the application areas of Module D?

Module D is applied in many industries involving serial production that require consistent quality.

Key application areas:

• Pressure equipment manufacturing,

• Steel structure fabrication,

• Machinery and equipment manufacturing,

• Industrial serial production lines,

• Energy sector equipment,

• Pipes and fittings,

• Automotive supplier industry production.

Equipment and Techniques Used Under Module D

Under Module D, the production system and quality infrastructure are evaluated rather than the product itself.

Methods used:

• Quality management system audits,

• Production process analyses,

• Documentation reviews,

• Evaluation of internal control records,

• Verification of traceability systems,

• Sample-based quality checks,

• Periodic surveillance audits.

These methods are used to verify the sustainability of production quality.

Module D Advantages

• Ensures consistent quality in production processes.

• Establishes standardization in mass production.

• Enhances product reliability.

• Ensures alignment with CE certification (Module CE / C process).

• Strengthens traceability systems.

• Supports compliance with European Union conformity processes.

Disadvantages of Module D

• It requires continuous monitoring and oversight.

• It may necessitate the establishment of a quality management system.

• It may increase the documentation burden.

• It may require additional control steps in production processes.

Nevertheless, the system is a critical structure that enhances production reliability and quality standards in the long term.

Contact us

You may contact us for detailed information regarding the audit and assessment activities carried out under Module D: Certificate of Conformity to Type Based on Quality Assurance of the Production Process (a conformity process associated with the CE / Module C certificate).

The conformity assessment processes conducted by our organization are carried out in accordance with European Union legislation, and we provide services for the assessment of production quality systems.