Steel fabricators and component manufacturers must demonstrate to an independent auditing body that they have appropriate systems in place to control the critical fabrication processes, which includes materials, traceability and welding. Fabricators are certified to a Construction Category from CC1 to CC4 and are able to work on projects within or below the category they are certified for. Certification is valid for five years but fabricators must undergo annual surveillance audits to maintain their SFC status.

Structural Engineer

The designer specifies a Construction Category (or categories) for the structural steelwork, either as a whole or for various components.


Builders must ensure that the fabricators they engage for steelwork contracts are certified for the appropriate Construction Category specified by the designer. Certified fabricators will display an SFC quality mark so procurers and specifiers can easily identify firms that meet the required standards. Click here for a list of fabricators and their Construction Category certification.