CE Marking Technical Files for Machinery Manufacturers Explained

A CE marking technical construction file for machinery is the documented evidence that a machine meets the applicable essential health and safety requirements before it is placed on the EU market. It generally includes a general description of the machine, design and manufacturing drawings, a risk assessment built around ISO 12100, the list of essential requirements applied and how, multilingual instructions for use, and the EC Declaration of Conformity. Manufacturers assemble and keep this file — it is not submitted automatically, but it must be producible within a reasonable time if a market surveillance authority asks for it.

That last point trips up more manufacturers than any single technical requirement. Engineering teams often treat the technical file as a formality to close out once the machine ships, when in practice it is the artifact that determines whether a customs hold, a market surveillance request, or a customer procurement audit gets resolved in an afternoon or drags into weeks of scrambling through email threads and shared drives.

What the technical file is actually for

The technical construction file exists to let an authority — or the manufacturer's own notified body, where one is involved — verify that the conformity assessment was done properly, without having to re-run it from scratch. It is the paper trail behind the CE mark, not the mark itself. A machine can look compliant on the outside, with a CE logo stamped on the nameplate and a Declaration of Conformity in the box, and still fail an audit if the underlying file is incomplete, inconsistent, or simply cannot be located when requested.

Under the current Machinery Directive 2006/42/EC, manufacturers (or their authorized representative established in the EU) must keep the technical file available for at least ten years after the last unit of that machine type was manufactured. It does not need to be filed with any authority in advance for most machinery categories — self-declaration by the manufacturer is the norm, with third-party notified body involvement reserved for machinery listed in Annex IV, such as certain woodworking machines, presses, and machinery for underground working.

What generally belongs in the file

The contents vary somewhat by machine type and by which conformity assessment route applies, but a technical construction file for machinery typically brings together the following categories of documentation.

The risk assessment usually carries the most weight in an audit, because it is where an inspector can see the manufacturer's reasoning: which hazards were identified, why a given guard or interlock was chosen over an alternative, and what residual risk remains after mitigation. A risk assessment that simply references ISO 12100 without showing the iterative process — hazard identification, risk estimation, risk evaluation, risk reduction, and re-evaluation — tends not to hold up well under scrutiny.

The shift from the Machinery Directive to the Machinery Regulation

The EU is in the middle of a transition from the Machinery Directive 2006/42/EC to the Machinery Regulation (EU) 2023/1230, which entered into force in 2023. A regulation applies directly across member states without needing national transposition, which is one reason the EU moved to this format — it also expands the scope of what counts as "safety components," tightens rules around software and connected machinery, and allows digital instructions for use under defined conditions.

Manufacturers should not assume their current product line is automatically covered under one framework or the other. Which regulation applies, and on what timeline, depends on the specific machine category, when it is placed on the market, and transitional provisions that are still being clarified in practice. This is a case where guessing costs more than asking: confirming the applicable framework and transition timeline with a notified body or a qualified machinery compliance professional is the safer path, rather than relying on a general summary — including this one — for a specific product decision.

Practical impact: where files fall apart in practice

In our experience working with manufacturers on documentation retrieval, the technical file rarely fails because a single component is missing outright. It fails because the pieces exist in different places — drawings in a PLM system, the risk assessment in a shared drive, translated instructions in a folder maintained by a regional distributor — and nobody can assemble a coherent, current version quickly when it is requested.

A few patterns show up repeatedly:

• Version drift. The drawings referenced in the risk assessment are not the same revision as the drawings shipped with the machine, because an engineering change was made after the file was first compiled and never propagated back.
• Translation gaps. Instructions for use exist in the manufacturer's home language and English, but not in the language of every country where the machine has actually been sold — a requirement, not a courtesy.
• Orphaned risk assessments. The risk assessment was completed by an external consultant during initial certification and never updated when the machine's control system or guarding was modified for a later production run.
• No single authorized person. The Declaration of Conformity names a person authorized to compile the technical file, but that person has left the company and nobody has formally taken over the role or the file's custody.

How Igera fits into this

Igera's platform lets manufacturers upload their own compliance documentation — risk assessments, drawings, standards checklists, instructions for use, prior Declarations of Conformity — and get answers that cite the exact source document and clause, rather than a generic summary. When a customer asks for the current EHSR checklist for a specific machine model, or a quality manager needs to confirm which revision of the risk assessment is on file, the answer comes back with a traceable citation instead of a search through shared drives. It does not replace legal or regulatory judgment, but it removes the retrieval problem that causes most technical files to fail an audit in practice.

Common mistakes

• Treating the technical file as a one-time deliverable at certification instead of a living document updated with every design change.
• Assuming a CE mark on a purchased component (a motor, a safety relay) transfers compliance responsibility away from the machine builder — it does not; the final machine's technical file still needs its own risk assessment covering the integration.

• Skipping the harmonized-standards gap analysis and assuming "we followed ISO 12100" is sufficient without documenting which specific type-B and type-C standards were consulted.
• Storing the file only with an external consultant or integrator, so the manufacturer itself cannot produce it on request.

Frequently asked questions

Does the technical file need to be submitted to an authority before selling the machine?

For most machinery categories, no. The manufacturer self-declares conformity and keeps the file available on request; it is not filed in advance. Machinery listed in Annex IV of the Machinery Directive requires third-party notified body involvement in the conformity assessment, which changes this picture for that specific subset of equipment.

How long must the technical file be kept?

Under the Machinery Directive, the file must be retained for at least ten years after the last unit of that machine model was manufactured. Manufacturers should confirm whether the Machinery Regulation changes this retention period for products falling under the new framework.

Who is allowed to compile the technical file?

The manufacturer designates a person established in the EU who is authorized to compile the technical file, and that person's name and address appear on the Declaration of Conformity. It does not have to be the manufacturer itself if the manufacturer is based outside the EU — an authorized representative can take on this role.

Do instructions for use really need to be translated into every market language?

Yes — instructions must be provided in the official language(s) of the EU country where the machine is placed on the market or put into service, in addition to an original-language version. This is one of the most commonly overlooked requirements, particularly for manufacturers selling into several EU countries through distributors.

What happens if a market surveillance authority asks for the file and it is incomplete?

Consequences range from a request to complete the documentation within a set period to withdrawal of the product from the market if the authority concludes the machine does not meet essential requirements. Specific enforcement actions vary by member state and by the severity of the gap, so this is a question to raise directly with a compliance professional familiar with the relevant national authority.

Is ISO 12100 mandatory, or just one way to do the risk assessment?

ISO 12100 is a harmonized standard, not a legal mandate in itself — but using it, and documenting that use, gives a presumption of conformity with the relevant essential requirements, which is why it is the near-universal reference point for machinery risk assessments in practice.

Will the Machinery Regulation (EU) 2023/1230 apply to machinery already on the market?

Generally, machinery already legally placed on the market under the Machinery Directive is not retroactively required to be re-assessed under the new Regulation. New machine models and future production runs are where the applicable framework and its timeline need to be confirmed case by case with a notified body or qualified compliance professional, since transitional details are still being clarified across member states.

Disclaimer

This article is for general informational purposes and does not constitute legal or regulatory advice. Requirements under the Machinery Directive 2006/42/EC and the Machinery Regulation (EU) 2023/1230 vary by machine category, intended market, and specific technical characteristics. Manufacturers should confirm which framework and timeline apply to their product with a notified body, a qualified machinery compliance professional, or the relevant national market surveillance authority before making compliance decisions.