++++ 1.Officials - Rights and obligations - Trade union rights - Scope ( Staff Regulations, Art . 24a ) 2.Officials - Rights and obligations - Trade union rights - Limits - Administration' s obligation to have trade union communications distributed - None ( Staff Regulations, Art . 24a ) 3.Officials - Administration' s duty of assistance - Scope - Collective employment relationships - Excluded 4.Officials - Equal treatment - Facilities granted by certain institutions for the distribution of trade union communications - No legal obligation - No principle of equality in relation to other institutions 5.Officials - Rights and obligations - Trade union rights - Scope - Participation by union representatives in preparatory meetings of the Consultation Committee - Administration' s obligation to grant time off work ( Staff Regulations, Art . 24a )