The hierarchy between SR and general implementing rules

F-34/14: The general implementing rules cannot lawfully, by way of explaining more fully a clear term of the Staff Regulations, reduce the scope of those regulations or of the CEOS or lay down rules which derogate from hierarchically superior provisions, such as the provisions of the Staff Regulations or the CEOS or general principles of law; Article 6(2) of the GIP restricts the scope of Article 85(1) of the CEOS in so far as it introduces a supplementary condition for the renewal of a contract as a member of the contract staff within the meaning of Article 3a of the CEOS which is not provided for in the CEOS and which hinders the exercise of the discretion conferred on the administration, without such a restriction being objectively justifiable in the interests of the service.