Should you need to check European wine regulations in detail, all EU law is documented online in the Lex Europa database which has excellent search facilities (https://eur-lex.europa.eu/advanced-search-form.html). Links to the key EU regulations are given below.

The information and links provide you with guidelines and signposting, but it is your responsibility to ensure you are complying with all relevant regulations, licences and legal requirements of the enforcing bodies and organisations.