Regulation 2

the Secretary‑General; (b)any PCA Legal Officer; or

any member of the staff of the International Bureau;“participant”, in relation to a PCA Proceeding, means —

a witness, expert, counsel or party to the PCA Proceeding;

an agent or other representative of a party to the PCA Proceeding;

an interpreter, translator or court reporter taking part in any hearing, meeting or other activity in relation to the PCA Proceeding; or

any person appointed by the PCA to assist any PCA Adjudicator in a hearing, meeting or other activity in relation to the PCA Proceeding;“Permanent Court of Arbitration” or “PCA” means the Permanent Court of Arbitration based in The Hague;“PCA Adjudicator” means any arbitrator, mediator, conciliator or member of a fact‑finding commission of inquiry taking part in any hearing, meeting or other activity in relation to any PCA Proceeding;“PCA Agreement” means the Host Country Agreement between the Government of the Republic of Singapore and the Permanent Court of Arbitration dated on 25 April 2022;“PCA Legal Officer” means any legal officer of the PCA appointed to serve in Singapore by the PCA pursuant to the PCA Agreement;“PCA Meeting” means any meeting or conference convened by the PCA or the PCA Office, or under the sponsorship or auspices of either;“PCA Office” means the PCA Office in Singapore for the Promotion of Dispute Resolution through the Mechanisms of the Permanent Court of Arbitration;“PCA Proceeding” means any dispute resolution proceeding administered by or under the auspices of the PCA in which one or more of the parties is a State, a State‑controlled entity or an intergovernmental organisation;“Secretary-General” means the head of the International Bureau.