1. On 27 September 2000, the Secretary-General of ICSID registered a notice for the initiation of arbitration proceedings, lodged by Waste Management Inc. (“Claimant”) under the ICSID Additional Facility Rules, in relation to a claim against the United Mexican States (“Respondent”). The claim arose out of a dispute concerning the provision of waste management services under a concession granted by the Municipality of Acapulco de Juárez (“Acapulco”) in the Mexican State of Guerrero (“Guerrero”). The Claimant alleged that certain conduct of Mexican organs or entities, including Acapulco and Guerrero, was a violation of NAFTA Articles 1105 and 1110. The Tribunal was constituted on 30 April 2001: its members were Mr. Benjamin R. Civiletti (United States of America) appointed by the Claimant, Mr. Guillermo Aguilar Alvarez (United Mexican States) appointed by the Respondent, and as President, Professor James R. Crawford (Australia) appointed by the Secretary-General of ICSID pursuant to Article 1124 (2) of NAFTA.