Before preparing an application, it is important to make sure that the product or service belongs to one of the product groups covered by the EU Ecolabel and that there are criteria for it. The preparation of the application begins with the company thoroughly assessing the compliance of its product or service with the EU Ecolabel criteria. 

Before filling in the application form, the requirements established for each product group must be examined and the necessary evidence must be compiled, including the necessary tests, the collection of technical documents and the declarations of suppliers. 

The guidelines and information sheets of the European Commission's product groups as well as the specialists of the Environment Agency, who can be contacted for advice and additional questions, are helpful in preparing the application. 

If desired, it is also possible to use the support of the Environmental Investment Centre, which helps to cover various costs related to applying for the EU Ecolabel, such as advice, preparatory activities, testing in laboratories, etc.