This document is an excerpt from the EUR-Lex website
An opinion is one of the five types of legal act that European Union (EU) institutions can adopt that are listed in Article 288 of the Treaty on the Functioning of the European Union (TFEU). The four other types of legal act mentioned in the article are regulations, directives, decisions and recommendations. The first three are binding, but opinions and recommendations are non-binding.
Examples of opinions issued by EU institutions, within the meaning of Article 288 TFEU, include the following.