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Inspect and Approve:  “While there is an increasing preference for self-certification, clients and contractors alike should be aware of the potential cost of non-compliance and make their own inspection and approval plans accordingly.”


Prodel has vast approval experience covering EMC, Environmental, Optical, TR1100 and Factory Acceptance Testing and Production Acceptance Testing on a wide range of systems.

Our view on the merits and cost-effectiveness of client-side inspection and approval regimes has been informed by "working at the sharp end" and the number of performance issues we have identified before equipment has been deployed. 

However we recognise that some clients have adopted a system of contractor self-certification as a matter of policy.

Whichever system is preferred, we stand ready to help.

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Where a client-side inspection and approval regime prevails, we are very well placed to support clients through approval testing and to provide comprehensive witness testing plans to ensure products fully comply with specifed requirements.

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Where self-certification prevails, we are equally well placed to:

  • Advise and support clients with comprehensive Technical File submission reviews (a critical yet often overlooked duty), OR
  • Advise and support contractors through the self-certification process and in preparing robust, comprehensive evidence-based Technical Files to support their submission.

Physical inspections and witnessed functional testing are key areas in this. Test plans can be provided to reflect the latest technical requirements in the event that client organisations are not able to provide their own. 

However, while the self-certification of sign and signal products is consistent with the EU harmonised standards for these products (BS EN 12966), clients and contractors should be especially aware of the increased risk this poses in respect of the control and communications aspects of these products.  Any cost savings achived through reduced functional testing in these areas are likely to be short-lived if problems emerge later after the product is deployed at the roadside.