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G Marking Surveillance and Product Changes
Review changes to products, materials, plants and production controls against the applicable G assessment route.
Updated:
G marking is a Turkish national route for construction products placed on the market for permanent incorporation in construction works where mandatory CE marking does not apply. Determine the product, intended use and applicable technical specification before choosing the route. A cheaper quotation does not make G an alternative to a required CE assessment.
Follow the actual surveillance requirements
Determine continuing manufacturer and body tasks from the relevant technical specification, attestation system and agreed assessment procedure. Keep production controls and required checks operating. Do not assign a universal annual renewal period to all G products.
Assess a change before reusing old evidence
Record changes to raw materials, formulation, site, equipment, process or intended use. Determine effects on characteristics and the reviewed scope, and confirm required notification, tests or document updates with the competent body. Not every change has the same consequence.
Use the formal status after a finding
Identify affected batches and deliveries, implement real corrections and retain follow-up evidence. Communicate necessary restrictions accurately using the actual body decision and manufacturer obligations. Do not backdate checks or imply that a planned follow-up already restored status.
The official Turkish product-rules database distinguishes the national G conformity certificate and/or G conformity declaration from the CE performance declaration. Required manufacturer and assessment-body tasks follow the applicable national technical specification and attestation system. A document bearing a logo does not establish completed assessment.
The manufacturer remains responsible for the product, production controls, truthful records and required declaration and marking. An enquiry to Kayra can identify product scope, existing evidence and necessary technical tasks. Verify any assessment body’s actual designation for the product and task; this page does not claim that Kayra is designated to issue a G conformity certificate.