76However, in the light of the principle of the hierarchy of rules (see, to that effect, judgment of 30 January 2008, Strack v Commission, T‑85/04, EU:T:2008:18, paragraphs 39 to 41), the ‘Common retention list for European Commission files’, because it simply introduces internal implementing rules for a decision adopted by the Commission (see paragraph 72 above), cannot call into question the previously interpreted provisions of the Staff Regulations (see paragraph 67 above), which is a regulation that, pursuant to Article 288 TFEU, is binding and of general application (see, to that effect, judgment of 14 April 2005, Belgium v Commission, C‑110/03, EU:C:2005:223, paragraph 33).
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