What Is CE Marking and What Does It Require?

CE marking is the visible declaration that a product meets the applicable European Union health, safety, and environmental requirements, allowing it to be legally placed on the EU/EEA market. It applies to many product categories, but for machinery and work equipment the core obligations are: identify the applicable directives or regulations, carry out a risk assessment, meet the relevant harmonised standards, compile a technical file, issue an EU Declaration of Conformity, and affix the CE mark. A Notified Body is only required where the applicable legislation says so. The steps below explain what that means in practice, using machinery as the main example.

Which products need CE marking?

CE marking is not voluntary and not universal. It applies only to products covered by one or more EU directives or regulations that require it. Common categories include:

• Machinery and safety components
• Electrical and electronic equipment
• Pressure equipment
• Medical devices
• Toys
• Construction products
• Personal protective equipment

For machinery, the starting point is the Machinery Regulation/Directive. Other legislation may also apply depending on the product — for example electrical safety, electromagnetic compatibility, or outdoor noise. A machine can fall under several pieces of legislation at once, and all applicable ones must be satisfied.

If no directive or regulation requires CE marking for your product, you do not CE mark it.

The core steps to CE mark machinery

1. Determine the applicable legislation and the product's classification

Identify every directive or regulation that applies to the machine. Then check whether the machine is "ordinary" or falls into a category listed in the machinery legislation as requiring a Notified Body (for example certain presses, woodworking machines, or machinery with specific safety-critical functions).

2. Carry out a risk assessment

The risk assessment is the foundation of the whole process. It identifies hazards, estimates risk, and records the protective measures taken. It should cover the whole lifecycle: assembly, operation, adjustment, maintenance, and reasonably foreseeable misuse.

3. Apply harmonised standards

Harmonised standards give a presumption of conformity with the essential health and safety requirements. Applying them is the most straightforward route, but you must confirm the standard actually covers your machine and its hazards. Where no standard exists, you must demonstrate conformity by other means.

4. Build the technical file

The technical file is the evidence pack that shows how conformity was achieved. It typically includes:

• Description of the machine and its intended use
• Drawings, schematics, and circuit diagrams
• Risk assessment
• List of applicable standards and how they were applied
• Test reports or calculations
• Instructions for use
• Declaration of Conformity

The file must be kept available for the authorities, generally for ten years after the last unit is placed on the market.

5. Involve a Notified Body where required

For machinery categories listed in the legislation as requiring third-party involvement, a Notified Body must carry out the relevant conformity assessment procedure. For most ordinary machinery, self-assessment by the manufacturer is sufficient and no Notified Body is needed.

6. Issue the EU Declaration of Conformity

The Declaration of Conformity is a legal document in which the manufacturer takes sole responsibility for conformity. It must identify the manufacturer, the product, the applicable legislation, any standards used, and any Notified Body involved. It must be signed and dated.

7. Affix the CE mark

The CE mark must be:

• Affixed visibly, legibly, and indelibly
• Placed on the product, or on its data plate, or on the packaging where that is not possible
• At least 5 mm high (unless a specific directive says otherwise)
• Accompanied by the Notified Body's identification number where one was involved

8. Maintain compliance after the sale

CE marking is not a one-off event. If the machine is modified in a way that affects conformity, the assessment must be revisited. Records must be retained, and the Declaration of Conformity must stay accurate.

CE marking vs PUWER: two different obligations

It is easy to confuse CE marking with PUWER compliance, but they address different stages and different parties.

A machine can be correctly CE marked and still fail PUWER if it is not suitable for the specific workplace task or is not maintained safely. Conversely, PUWER compliance does not replace the need for CE marking.

Common mistakes and consequences

• Assuming all products need CE marking. Only products covered by the relevant legislation do.
• Treating the technical file as a formality. It is the evidence base; a weak file is the most common reason for problems during market surveillance.
• Ignoring standards that apply. Missing an applicable standard can leave essential requirements unmet.
• Using a Notified Body when not required, or not using one when required. Both create legal risk.
• Failing to update the assessment after modification. Changes to the machine can invalidate the original conformity.
• Confusing CE marking with PUWER. They are separate legal regimes with separate duties.

Non-compliance can lead to the product being withdrawn from the market, restrictions on sale, and penalties under national law. The exact consequences depend on the member state and the nature of the breach.

When to get specialist help

If you are a manufacturer or importer with limited in-house resources, or if your machine falls into a category requiring a Notified Body, an engineering consultancy can carry out the assessment and compile the technical file on your behalf. The same applies to PUWER: assessments and pre-purchase safety audits can be conducted for employers and suppliers who need to demonstrate that equipment is suitable and safe for use at work.

The practical decision is straightforward: confirm which legislation applies, check whether a Notified Body is needed, and make sure the technical file and Declaration of Conformity are complete before the product is placed on the market.