3. Additional immunities and privileges of PCA

The PCA enjoys and has, in addition to its immunities and privileges under the International Organisations (Immunities and Privileges) (Permanent Court of Arbitration) Order 2007 —

freedom of communication for all official purposes; and

the right to send and receive correspondence by courier or in a bag, such courier to enjoy the same privileges and immunities as a diplomatic courier, and such bag to have the same status as a diplomatic bag, under Article 27 of the Vienna Convention on Diplomatic Relations.