46If, following the preliminary examination, it finds that the measure notified raises doubts as to its compatibility with the common market, the Commission is required to adopt, on the basis of Article 4(4) of Regulation No 659/1999, a decision initiating the formal investigation procedure under Article 88(2) EC and Article 6(1) of that regulation. Under the latter provision, such a decision is to call upon the Member State concerned and upon other interested parties to submit comments within a prescribed period which must not as a rule exceed one month.
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