22That cannot be said of a document in which the Commission simply interprets a legislative provision. A written expression of opinion by a Community institution cannot constitute a decision in respect of which an action for annulment may be brought, since it is not capable of producing any legal effects nor is it intended to produce such effects (judgments in Case 133/79Sucrimex and Westzucker v Commission [1980] ECR 1299 and Case 114/86United Kingdom v Commission [1988] ECR 5289 and order in Case 151/88Italy v Commission [1989] ECR 1255).