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TWI Certification Ltd
TWI Certification Ltd

Certification Scheme
for Personnel

Internationally recognised, competence assurance certification for people engaged in welding, joining, materials integrityand inspection in manufacturing, construction, operation or repair of high integrity structures, plant or machinery.

End Point Assessment (EPA) 

TWI Certification is an approved End Point Assessment (EPA) organisation for apprentices who have undertaken Welder Level 2 or 3, Plate and Pipe Welder Level 3, Nuclear Welding Inspection Technician or NDT Operator and NDT Technician apprenticeships. EPA is the final assessment of an apprentice, to ensure that they can do the job they have been trained for and includes performance led development goals but is separate to any qualifications or assessment taken during the apprenticeship itself.

Welding Fabricator Certification Scheme

This scheme is designed to allow welding fabricators to demonstrate compliance with ISO3834 Quality Requirements for Welding. The scheme also satisfies EWF/IIW criteria for ISO3834 certification.


Conformity Assessment of the Execution of Steel and Aluminium Structures

The Construction Products Regulation requires structural steel and aluminium products to be CE marked across Europe. EN 1090 is a standard that sets the requirements for conformity assessment of steel and aluminium structural components.


Certification for Welding of Railway Vehicles and Components

Manufacturer certification in accordance with EN 15085 is being increasingly specified by customers of components, sub-assemblies and vehicles. The scheme demonstrates a manufacturer’s competence for control of welding quality in production of railway vehicles and components.

CWRVC 15085

Certification of Manufacture of Special Materials (CMSM)

CMSM demonstrates that manufacturers of special materials have sufficient competence and experience of relevant material grades of metal, and the necessary facilities and equipment, to manufacture materials in the required shapes and sizes with acceptable properties according to the applicable standard, material specification and/or material data sheet specified by the purchaser.

M650 Certification

Certification Scheme for Welder Training Organisations

The Certification Scheme for Welder Training Organisations (CSWTO) is successful in creating and strengthening relationships between FE Colleges or private training providers and local employers.

TWI Global
Training & Examinations
The Welding Institute
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