You intend to repeat a conversion across several vehicles. The file needs to identify the eligible base vehicles, affected systems and repeatable installation—not just a list of parts.
What is series modification type approval?
It concerns technical assessment of a defined vehicle type and a defined repeated modification scope. It is not an unlimited authorisation for every vehicle and conversion. The base type, variant/version, intended change and production/installation site are considered together. For Turkish applications, consult TSE's current AİTM series modification service and documents.
Series modification, individual work and later stages
A file for one individual conversion differs from a repeatable vehicle-type application. Completing an incomplete base vehicle also needs its own assessment. Start with the existing approval and completion status.
What technical outputs are prepared?
- Scope matrix covering base vehicles, intended category/body and changes.
- Drawings and relevant mass, axle-load and installation calculations.
- Evidence register for component approvals, existing reports and additional tests.
- Installation and inspection instructions.
- Traceability between prototype, application revisions and production records.
Mandatory application attachments are checked against the current procedure and the control form for the actual conversion. Reports cannot simply be transferred because two vehicles look similar.
Review affected safety systems early
Seats, category changes or a new body can affect brakes, lighting, visibility and electronic safety systems. Review ISA sensor visibility and base approval where relevant. Do not assume either a universal test list or a universal exemption.
From preparation to production
Compare the actual installation with existing documents, identify gaps and prepare the prototype and production site alongside the file. Track each authority finding against the changed document revision. After approval, retain production-conformity controls and individual vehicle records.
Information for an initial quotation
Share the base CoC or registration document, existing approvals, conversion description, dimensioned layout or photographs, site and planned volume. Engineering, testing and official application costs are separated after defining the scope.
Review your series modification project
Share the existing documents and intended work. We first identify the technical scope and gaps, then agree the proposal and work plan.
Frequently asked questions
Does one approval cover every vehicle?
No. Its stated vehicle and modification scope governs.
Can an old prototype report be reused?
Its scope and technical applicability require review.
Does Anemon issue the approval?
Anemon supports technical preparation and coordination. The authorised body conducts the official process and decision.
Official sources and scope
Sources checked: 25 October 2026. Country-specific guidance applies only within its stated jurisdiction and approval route.