CE marking for self-built machinery and own use

The Machinery Regulation attaches not only to placing on the market, but also to putting into service. Whoever builds a machine themselves and uses it exclusively in their own operation does not place it on the market — but they put it into service. So: it must meet the essential requirements, bear a CE marking and be accompanied by an EU declaration of conformity, before it goes into service.

Whoever builds a machine for own use is the manufacturer

The self-builder takes on the full manufacturer obligations: risk assessment, technical documentation, declaration of conformity, CE marking. There is no general exception for "internal use only" machines.

What to do before the machine runs

• risk assessment under Annex III — it determines the applicable requirements;
• technical documentation under Annex IV Part A, to be kept at least ten years;
• EU declaration of conformity under Annex V Part A;
• affix the CE marking.

If the self-built machine is connected, the Cyber Resilience Act applies as a further act — in one declaration, not a second document.