CE Marking: The Complete Guide

What is CE marking?

CE marking (from the French *Conformité Européenne*, “European Conformity”) is a marking by which a manufacturer declares that a product complies with the EU legislation that applies to it, so the product can move freely on the market of the European Economic Area (EEA).

It is important to be precise about what the CE mark is — and is not. It is not a quality mark, and it is not a safety certificate issued by an authority. It is the manufacturer taking legal responsibility for the product’s conformity. By affixing the CE marking, the manufacturer declares, on its sole responsibility, that the product meets all the applicable requirements.

CE marking is mandatory only for products that fall under one or more EU directives or regulations that provide for it — for example machinery, electrical and electronic equipment, personal protective equipment, pressure equipment, medical devices, and toys. Products not covered by any such legislation must not carry a CE marking.

Which products need CE marking?

CE marking applies only where a specific piece of EU legislation requires it. The product groups covered include, among others:

• **Machinery** (Machinery Directive / Machinery Regulation).
• **Electrical equipment** within certain voltage limits (Low Voltage Directive).
• **Electronic equipment** that must not cause or be disrupted by interference (EMC Directive).
• **Personal protective equipment** (PPE Regulation).
• **Pressure equipment** (PED) and simple pressure vessels.
• **Medical devices**, **toys**, **radio equipment**, **gas appliances**, **lifts**, and more.

If a product falls under several of these at once — say, a machine with electrical and radio components — it must meet the requirements of every applicable directive before it can be CE marked. Conversely, product groups governed by other regimes (for example many chemicals, foods, and textiles) are not CE marked at all.

CE marking vs a “CE certificate” vs a Declaration of Conformity

This is the single most common source of confusion, so it is worth stating plainly. For the majority of products, there is no “CE certificate.” The manufacturer self-assesses conformity and the key legal document is the EU Declaration of Conformity (DoC) — a signed statement that the product meets the applicable directives, listing the standards applied and the responsible person.

For higher-risk products, the legislation requires an independent Notified Body to be involved in the conformity assessment. In those cases the Notified Body issues a certificate (for example an EU-type examination certificate), and its identification number appears next to the CE marking. The Declaration of Conformity is still required — the Notified Body certificate supports it rather than replacing it.

So: the CE marking is the visible symbol on the product, the Declaration of Conformity is the legal document behind it, and a certificate exists only where a Notified Body is required. The dedicated guide — CE Marking vs Declaration of Conformity — works through the distinction in detail.

The role of harmonised standards

EU legislation sets out the essential requirements a product must meet, but not the technical detail of how to meet them. That is the job of harmonised standards — standards whose references are published in the Official Journal of the EU.

Applying the relevant harmonised standard is voluntary, but it carries a powerful benefit: a product built to it enjoys a presumption of conformity with the essential requirements the standard covers. In practice this is the route most manufacturers take, because it turns an open-ended legal obligation into a concrete, testable specification.

How to CE mark a product (six steps)

The CE marking process follows the same six steps across most product groups:

1. Identify the applicable directive(s) and regulation(s). Determine which EU legislation covers your product — there may be more than one.

2. Determine the conformity assessment route. Establish whether you may self-assess, or whether a Notified Body must be involved based on the product’s risk class.

3. Assess and test conformity. Verify the product against the essential requirements, ideally via the relevant harmonised standards, and record the results.

4. Compile the technical documentation. Assemble the technical file — design, risk assessment, test reports, and the evidence that the product conforms.

5. Draw up and sign the EU Declaration of Conformity. Issue the DoC, listing the product, the legislation and standards applied, and the responsible person.

6. Affix the CE marking. Apply the CE marking (and any Notified Body number) to the product, following the rules on form and visibility.

After marking, the obligation continues: the technical documentation and Declaration of Conformity must be kept available for market surveillance authorities — typically for ten years after the product is placed on the market. The step-by-step companion piece is CE Marking Requirements: How to CE Mark a Product.

CE marking and your documentation

CE marking does not end when the product ships. Declarations of Conformity, technical files, test reports, and any Notified Body certificates have to be retained and produced on request — and when you build products from certified components, you also depend on your suppliers’ DoCs and certificates.

This is where certificate management does the heavy lifting: store each Declaration of Conformity and certificate against the product record it belongs to, track the expiry of any Notified Body certificates with expiration tracking, and collect component DoCs from suppliers through supplier collaboration instead of by email. For the wider context, see the certificate management guide.

CE marking and UKCA in Great Britain

Since the UK left the EU, Great Britain (England, Scotland, Wales) has its own conformity marking, UKCA, alongside the EU’s CE marking. The two cover broadly equivalent ground but are legally distinct regimes.

The practical position has shifted several times, and UK government policy on how long CE marking remains accepted in Great Britain — and for which product groups — has continued to evolve. Northern Ireland operates under separate arrangements again. Because this is the most fast-moving part of the picture, confirm the current rules for your specific product group with up-to-date UK and EU guidance before relying on them.