Type approval is the certification by a competent authority that a vehicle type conforms to safety and environmental requirements. This process, a precondition for selling trailers in the European market, approves not a single vehicle but the product type: every vehicle produced in conformity with the approved type can enter traffic without separate testing.
Main Steps of the Process
- Technical file: Systematic compilation of design data, calculation reports and drawings
- Technical service tests: Independent verification of braking, lighting, coupling components and structural requirements
- Approval authority review: Evaluation of test results and the file, and issuance of the type-approval certificate
- Certificate of conformity: Issuing a document showing conformity to type for every vehicle produced
- Conformity of production: Periodic auditing to confirm series production does not deviate from the approved type
Practical Notes for the Manufacturer
The most frequently underestimated part of the process is variant management: correctly structuring axle-count, length and equipment combinations within the approval scheme avoids repeating the process for every new order. In multi-stage manufacturing — such as a body built onto a chassis — documenting the boundaries of responsibility is critical. Type approval is not bureaucracy; it is the outward proof of engineering discipline. A manufacturer with an orderly file both speeds up the approval process and opens the door of international markets to its product.