++++ 1. Officials ° Career ° Article 45(2) of the Staff Regulations ° Systematic distinction between categories and services ° Transfer from the Language Service to Category A ° Requirement for a competition ° Discrimination against officials in the Language Service ° No (Staff Regulations, Art. 45(2)) 2. Officials ° Actions ° Interest in bringing proceedings ° Plea of infringement of an essential procedural requirement ° Non-discretionary power of the administration ° Plea inadmissible (Staff Regulations, Art. 91)