Conformity assessment routes: how much of the proving somebody else has to do

The menu is written by the legislation, not by the manufacturer

Product laws typically define a set of assessment procedures and then allocate them across risk categories, so what is available for a given article follows from how that legislation classifies it. Some categories permit the manufacturer to assess itself, others require an independent examination of the design, others add ongoing oversight of production, and some allow a choice between comparable routes with different administrative shapes. Working out where a product sits is upstream of everything else, because the route determines what evidence has value. Testing to a standard is not wasted effort if the route turns out to be different, but it may not be the evidence that route wants.

Self-assessment relocates the burden rather than removing it

Where a manufacturer may assess its own product, the technical work does not shrink; the external check disappears. That sounds cheaper and often is, but it removes the moment when somebody independent would have noticed a misapplied standard or an unexamined hazard. Businesses that use this route well build their own challenge into the process, through design review by people not attached to the project, or by commissioning testing they are not obliged to commission. Those that use it badly discover the gap when a competitor complains to an enforcement body and the file has to withstand scrutiny for the first time.

Examining a sample and assuring the output are separate problems

Routes involving an outside body often split into two questions. First, does this design, represented by a submitted example, meet the objectives? Second, do the units leaving the factory match it? The first is answered once and revisited on change. The second is answered continuously, through audited production arrangements, batch verification or periodic surveillance visits, depending on the route. Manufacturers focused on passing the initial examination sometimes underestimate the second, which carries recurring cost, requires production records that stand up to inspection, and can suspend supply if a surveillance visit finds the process has drifted from what was assessed.

Changes that quietly invalidate the assessment

An assessment attaches to a defined product made in a defined way. Redesigning a safety-relevant part, changing a material, moving assembly to a different site, switching to a different edition of the standard relied on, or extending a range with a variant nobody examined can all put the conclusion outside its stated scope. Where an independent body is involved, that body normally has to be told and may need to reassess. The common failure is a change approved through an engineering route that never touches regulatory sign-off, so nobody realises the certificate no longer describes what is shipping.

Accreditation is what makes a third party's word worth anything

Bodies performing assessment are themselves assessed, usually by a national accreditation body operating within international peer-evaluation arrangements, and their competence is defined for specific standards and product types rather than in general. Before engaging one, check the published scope covers what you need; before accepting a supplier's certificate, check the same. Routes, scopes and requirements are set by the legislation applying to each product and by the authorities administering it, and they change. Nothing here substitutes for reading what the relevant authority publishes or for advice from someone qualified to apply it to your specific case.

Frequently asked questions

Who decides which assessment route applies to our product?

The legislation covering the product does, through the way it classifies risk, and the manufacturer applies that classification to its own article. Where the classification is genuinely uncertain, an assessment body or a qualified adviser can help interpret it, though the responsibility for the conclusion stays with the manufacturer. Enforcement bodies can and do disagree with a classification, which is why the reasoning behind it belongs in the documentation rather than in somebody's memory.

Does a passing report from an accredited laboratory finish our assessment?

Rarely on its own. A report shows that a sample met specified criteria under stated conditions. The assessment also has to address hazards no standard test covers, information supplied to users, the arrangements ensuring production units match the sample, and any route-specific steps such as an independent design examination. Treat accredited test results as strong evidence within a wider argument rather than as the argument itself, and check the report's scope matches the product configuration you sell.

We are moving production to a different factory. Does the existing assessment carry over?

Not automatically, and for routes involving oversight of production it frequently does not. Where a body assessed the manufacturing arrangements, those arrangements have changed, and the body will normally want to evaluate the new site. Even under self-assessment, the evidence that output matches the assessed design now rests on different equipment, different operators and different process controls. Plan the regulatory work into the transfer schedule; teams that treat it as paperwork discover it gates the first shipment.