++++ 1.Officials - Decision adversely affecting an official - Decisions concerning the exercise of trade-union rights ( Staff Regulations of Officials, Art . 24a ) 2.Officials - Action - Interest in bringing an action - Action for the annulment of a decision concerning the applicant' s performance of union duties - Admissibility ( Staff Regulations of Officials, Art . 91 ) 3.Action for annulment - Action directed against a confirmatory decision - Inadmissibility - Condition - Application to staff cases ( EEC Treaty, Art . 173; Staff Regulations of Officials, Art . 91 ) 4.Officials - Action - Procedure - Action brought by a trade-union organization - Inadmissibility ( Staff Regulations of Officials, Art . 91 ) 5.Procedure - Time-limits - Mandatory nature - Action brought by a legal person - Introduction conditional on valid resolution of competent body - No effect on starting point of period for bringing proceedings 6.Action for annulment - Time-limits - Starting point - Notification - Concept - Burden of proof of notification ( EEC Treaty, Art . 173, third paragraph, and Art . 191 )