Declaration of Conformity (DoC)
A universal certificate of conformity is a mandatory step before affixing the CE marking.
Who it’s for:
manufacturers, importers, and authorized representatives across all CE marking sectors (machinery, electrical and electronic equipment, radio equipment, PPE, toys, medical devices, etc.).
Validity:
indefinite — the declaration is reviewed only if the design or legislation changes.
Validity period:
Download the sample
What is a Declaration of Conformity?
A DoC is the manufacturer’s legal statement that its product complies with all relevant EU directives and regulations. The document is mandatory for affixing the CE marking and is kept in the technical file for at least 10 years.
It must include the manufacturer’s details, a description of the product, and the list of applicable directives/regulations and harmonized standards. The wording and order of fields are defined by Annex III to Decision 768/2008/EC. It is signed by an authorized person and translated into the languages of the countries of sale.

Need help?
Alstera prepares the Declaration of Conformity (DoC) and the technical file, and liaises with Notified Bodies (NB) for modules requiring NB involvement.
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Frequently asked questions
In most sectors, it is sufficient to make the DoC available online or include a copy in the packaging—see the specific directive.
In the language of the Member State where the product is sold; English is often added as a universal language.