CE Marking
Process
Topic overview
Quick facts
CE marking is a self-declaration regime with teeth: the manufacturer, not a government agency, affixes the mark and signs the EU Declaration of Conformity, asserting compliance with every applicable directive or regulation, for machinery the Machinery Directive 2006/42/EC, transitioning to the Machinery Regulation (EU) 2023/1230 which becomes applicable in January 2027, plus commonly EMC and other directives.
The assertion must be backed by a technical file assembled before the mark goes on: the risk assessment, drawings and calculations, applied harmonized standards, test evidence, and the instructions for use.
Harmonized standards, EN standards cited in the Official Journal, are the practical route to compliance: applying them grants a presumption of conformity with the essential health and safety requirements they cover. , ISO 13849, , and machine-specific type-C standards are the workhorses for machinery.
Deviating from harmonized standards is legal but shifts the burden to demonstrating equivalent safety directly against the essential requirements, a much harder argument.
Most machinery is self-certified, but Annex IV (becoming Annex I under the Regulation) categories, certain presses, woodworking machinery, safety components, and newly, some safety software and machinery with self-evolving behavior, require notified body involvement.
Two boundary cases matter constantly in practice: partly completed machinery ships under a Declaration of Incorporation rather than a CE mark, and an end user who substantially modifies a machine can become its manufacturer with full obligations.
The case for CE Marking
No CE mark means no legal sale or use in the EU and EEA, full stop, and an unsupported CE mark is worse: market surveillance authorities can force recalls, and after an accident the technical file is the first thing inspectors and prosecutors request, with personal liability possible for signatories.
For product planning the practical stakes are lead time and architecture: notified-body categories add months, the new Machinery Regulation pulls software updates and AI-driven behavior into scope, and integrators routinely reject machines whose documentation cannot survive their compliance review, making CE quality a sales velocity issue.
CE Marking in practice
CE conformity route (machinery)
The manufacturer determines which directives and regulations apply, selects harmonized standards, and runs the risk assessment as the spine of the effort, driving design measures, safety functions with their ISO 13849 PL ratings, and the residual-risk content of the instructions.
The technical file is assembled progressively; required verifications (electrical per , functional safety validation per ISO 13849-2) are performed and recorded; for listed categories a notified body examines the type.
The authorized signatory issues the Declaration of Conformity and affixes the mark before placing on the market, and the file is retained, typically ten years.
What scrutiny looks for, whether from authorities, customers, or accident investigators: a risk assessment matching the machine as built, evidence for every safety function's claimed PL, instructions covering residual risks and foreseeable misuse, and a coherent declaration citing the right directives and standards editions.
Where teams get CE Marking wrong
CE Marking and its standards
In programs run to ISO 12100, CE Marking is one of the things the assessor checks first - the foundational machinery safety standard establishing risk assessment methodology and the hierarchy of risk reduction.
Assessors evaluate CE Marking against IEC 60204-1, requirements for the electrical equipment of machines, including supply disconnection, emergency stop, and protective bonding.
Conformity routes
| Route | When | Third party? |
|---|---|---|
| Internal production control | Standard machinery, harmonized standards applied | No |
| EC/EU type examination | High-risk categories (Annex IV / Annex I) | Notified body |
| Full quality assurance | High-risk categories, QA-based route | Notified body audits |
| Partly completed machinery | Incorporation by another manufacturer | No; Declaration of Incorporation |
Industries where CE Marking applies
In industrial machinery, CE Marking comes up in nearly every certification conversation: fixed and mobile machinery, packaging lines, and manufacturing equipment.
Ask our team about CE Marking
Ben TwomblyFounder & CEOLeads CSA's functional-safety, certification, and engineering programs for safety-critical products and organizations. His assessor-side background informs practical programs that connect standards, engineering work, and credible evidence.
Bodo SeifertPrincipal Safety EngineerLeads automotive, autonomy, AI/ML, cybersecurity, and functional-safety work. His experience covers electronic-control development, vehicle testing, advanced engineering, autonomous-truck safety, assessment, and training.Terms related to CE Marking
How each connects to CE Marking:
Programs that deal with CE Marking almost always involve Risk Assessment in the same phase.
Both CE Marking and HARA sit under ISO 12100, so evidence for one usually references the other.
Both CE Marking and Hierarchy of Risk Reduction sit under ISO 12100, so evidence for one usually references the other.
Hazard Analysis is governed by ISO 12100 as well, which is why the two show up together in audits.
Safety Management System plays the same role in its domain that CE Marking plays here.
Like CE Marking, Functional Safety Certification is a process you will meet early in a safety program.
Teams working on CE Marking typically encounter Functional Safety in the same program.
Understanding CE Marking is easier with SIL as context, and vice versa.
Understanding CE Marking is easier with Performance Level as context, and vice versa.
Safety Function complements CE Marking: one frames the question, the other shapes the evidence.
Understanding CE Marking is easier with Safe Torque Off as context, and vice versa.