Why Is My Certificate of Conformity (COC) in a Different Language? Is It Still Valid?

Why is the document in a different language than the country where I need it?

The Certificate of Conformity (COC) is issued in one or more of the official languages of the European Union, as required by Regulation(EU) 2018/858.

Since all EU languages are officially recognized, the document remains fully valid and accepted in any EU, EEA, UK, or Swiss country, even if it is written in a different language.