10The Commission points out that acts or decisions against which an action for annulment may be brought are measures which produce binding legal effects capable of affecting the interests of the applicant by bringing about a significant change in its legal position. It stresses that in the case of acts or decisions adopted by a procedure involving several stages, only those measures which definitively lay down the position of the institution on the conclusion of that procedure constitute, in principle, acts open to review, and not provisional measures intended to pave the way for the final decision (Case 60/81 IBM v Commission [1981] ECR 2639, paragraph 8 et seq., and Joined Cases T-10/92, T-11/92, T-12/92 and T-15/92 Cimenteries CBR and Others v Commission [1992] ECR II-2667, paragraph 28).
11The defendant maintains that the documents challenged by the applicant do not produce legal effects capable of affecting its interests by bringing about a significant change in its legal position. They are simply reports recording the notes taken by the Commission's officials during the investigation.
12Furthermore, were the Commission to use the reports in any decision it took concerning the applicant as evidence of anti-competitive conduct, the applicant would have every opportunity of challenging that use of the reports before the Commission and, if necessary, before the Community courts.
13Finally, the defendant points out that while it is possible to challenge a decision by the Commission to make a formal request for information under Article 11(5) of Regulation No 17 or to undertake a formal investigation under Article 14(3), no such challenge is provided for in relation either to a simple request for information under Article 11(1) of Regulation No 17 or to an investigation upon production of the authorization referred to in Article 14(2), as was the case in this instance.
14The applicant claims that the very existence of the documents in issue constitutes an act adversely affecting it because, although described as preparatory documents, they do have a legal effect since they will inevitably influence developments in the case and the preparation of the final decision. The documents therefore have a detrimental effect on its legal position.
15It maintains that, since the Court of Justice has recognized the possibility of challenging a request for information based on Article 11 of Regulation No 17 (Case 374/87 Orkem v Commission [1989] ECR 3283 and Case 27/88 Solvay v Commission [1989] ECR 3355) and since the Commission's officials misused the procedure under Regulation No 17 in this case, by seeking to obtain written answers to questions on the basis of Article 14, a measure that ought to have been based on Article 11 of the regulation, this action should be held admissible.
16The applicant concludes that, rather than run the risk of nullifying the final act which may be adopted by the Commission, it would seem preferable, in the interests of the sound administration of justice and providing greater protection for the right to a fair hearing, to annul the acts adversely affecting the applicant before they produce more serious effects liable to vitiate the whole of the procedure.
17In its observations on the plea of inadmissibility, moreover, the applicant argues that the documents are far from being mere ‘notes recording the oral explanations given’, since the Commission's officials asked both the applicant's representatives and the representatives of the national authorities to sign them. It stresses that they constitute veritable reports which the Commission is reserving the right to use as evidence or factors in support of its decision.
18Pursuant to Article 114 of the Rules of Procedure, the Court may, where a party so requests, decide on admissibility without going into the substance of the case. In this case, the Court of First Instance considers that it is sufficiently informed by the documents before it and can decide on the application without opening the oral procedure or going into the substance of the case.
19In order to decide whether the action is admissible, it must be borne in mind that acts or decisions against which an action for annulment may be brought under Article 173 of the Treaty are measures which produce binding legal effects capable of affecting the interests of the applicant by bringing about a significant change in its legal position {IBM, cited above, paragraph 9).
20In the case of acts or decisions adopted by a procedure involving several stages, an act is in principle challengeable only if it is a measure definitively laying down the position of the institution on the conclusion of that procedure, and not an intermediate step intended to pave the way for the final decision (see IBM, cited above, paragraph 10; Case T-64/89 Automec v Commission [1990] ECR II-367, paragraph 42; Cimenteries CBR and Others, cited above, paragraph 28; Case T-186/94 Guérin Automobiles v Commission [1995] ECR II-1753, paragraph 39; and Case T-134/95 Dysan Magnetics and Review Magnetics v Commission [1996] ECR II-180, paragraph 20).
21In this case, therefore, the Court must determine whether the two documents — including the annexes thereto — described as reports, which have been challenged by the applicant, are themselves of a kind to produce legal effects capable of affecting the interests of the applicant or whether the drawing-up of the documents is rather a preparatory step whose legality could be challenged in an action against any final decision, whilst still providing sufficient protection for the parties concerned (Case 53/85 AKZO Chemie v Commission [1986] ECR 1965, paragraph 19, and Cimenteries CBR and Others, cited above, paragraph 31). Only in the case of measures immediately and irreversibly affecting the legal situation of the undertaking concerned could an action for annulment justifiably be held admissible before the administrative procedure is completed (Cimenteries CBR and Others, cited above, paragraph 42, and Dysan Magnetics and Review Magnetics, cited above, paragraph 21).
22The investigation procedure referred to in Article 14 of Regulation No 17 is not aimed at terminating an infringement or declaring that an act is unlawful, but has the sole object of enabling the Commission to gather the necessary information to check the actual existence and scope of a given factual and legal situation (Case 136/79 National Panasonic v Commission [1980] ECR 2033, paragraph 21). Any decision establishing an infringement of Article 85 or Article 86 of the Treaty, pursuant to Article 3(1) of Regulation No 17, is taken only at a later stage.
23Furthermore, Article 14(1)(c) of Regulation No 17 empowers the officials authorized by the Commission to ask for oral explanations during and for the purposes of the investigation. The fact that they have that power to request information on specific questions arising from the books and business records which they examine is not sufficient to conclude that an investigation is identical to a procedure intended to obtain information within the meaning of Article 11 of Regulation No 17 (National Panasonic, cited above, paragraph 15).
24In any event, while a formal decision to undertake an investigation may be decisive in providing evidence of the unlawful nature of conduct engaged in by undertakings for which they may be liable (see Case 85/87 Dow Benelux v Commission [1989] ECR 3137, paragraph 26), a request for explanations or information that is not in the nature of a formal decision cannot be deemed to be similarly decisive.
25Finally, the issues concerning the way in which the investigation was carried out, including the drawing-up of the reports, may, if appropriate, be examined in the context of an action challenging any final decision of the Commission.
26In those circumstances, since the documents challenged by the applicant cannot be considered to affect its legal position immediately and irreversibly, their existence is not such as to justify holding an action for annulment admissible before the administrative procedure is completed.
27It follows from all the foregoing that the action must be declared inadmissible.