Brooks Daly, Deputy Secretary-General and Principal Legal Counsel, Permanent Court of International Arbitration, The Hague,Evgeniya Goriatcheva, Assistant Legal Counsel, Permanent Court of Arbitration, The Hague,Hugh Meighen, Assisociate, International Arbitration Group, Freshfields Bruckhaus Deringer, Dubai (Formerly assistant legal counsel at the PCA).

Brooks W. Daly is Deputy Secretary-General and Principal Legal Counsel at the PCA where he is responsible for legal affairs and supervises PCA support of tribunals in arbitrations under contracts, investment treaties, and in inter-State claims under UNCLOS and other instruments. He also lectures at Leiden University and is the author of numerous articles, including 'The Abyei Arbitration', (with G. Schofield) in The Max Planck Encyclopedia of Public International Law (OUP, 2011).

Evgeniya Goriatcheva is Assistant Legal Counsel at the PCA where she assists tribunals in international commercial, investment, and inter-State arbitrations. She holds BCL and LLB degrees from McGill University, where she previously taught a tutorial on legal methodology and was the editor of the John E. C. Brierley Memorial Conferences dedicated to international arbitration.

Hugh A. Meighen is an Associate in the International Arbitration Group of Freshfields Bruckhaus Deringer focusing on international commercial, investment and construction disputes. Previously, he worked as Assistant Legal Counsel at the PCA. He holds an AB cum laude degree from Princeton University and BCL and LLB degrees from McGill University, and is admitted to the bars of New York and Ontario.

Part 1. Introduction
1. Introduction
Part 2. Commentary on the PCA Arbitration Rules 2012
2. Introduction
3. Section I. Introductory Rules )
4. Section II. Composition of the arbitral tribunal
5. Section III. Arbitral proceedings
Appendices