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How to Prepare an EU Declaration of Conformity: Step-by-Step
Prepare the declaration after establishing the product's conformity basis.
Continue with the relevant decision step
Direct answer
Prepare the declaration after establishing the product's conformity basis. First confirm product and manufacturer identity, then applicable legislation, assessment route and supporting evidence. Select the correct declaration model and check all fields before an authorised signature; writing a template does not complete missing assessment.
Decision and evidence
Cross-check models, reports, standards and body information against the technical file. Control publication, language copies and later changes under one declaration version.
Technical basis
The declaration is the manufacturer’s signed legal statement. Product identification, applicable legislation, standards, authorised signatory and technical-file link must be consistent.
Related practical guide
EU Declaration of Conformity: Signatures, Model Lists and Languages
Primary sources and currency
This page was technically reviewed on 22 August 2026 against the primary sources below. The current legislation, standard edition and official fee schedule at the application date take precedence.
European Commission — CE marking for manufacturers ↗EUR-Lex — Blue Guide on implementing product rules ↗European Commission — Conformity assessment ↗Practical questions
Which standards belong in the declaration?
Identify standards or technical specifications actually used as conformity evidence, with correct versions. Long unrelated lists do not improve reliability. Verify official publication and coverage when claiming use of harmonised standards. Listing applicable legislation and supporting standards serves different purposes.
Is changing the declaration date sufficient after a product modification?
First assess effects on the technical basis for conformity. Complete necessary further assessment before updating the declaration and related records. Preserve traceability between product revisions and declarations. A new date alone does not address changed designs or legal requirements.
Let us define the correct scope together.
Share the product or activity, site, target market, existing evidence and target date. Kayra Patent will explain a practical preparation and coordination route.