The members of the Preparatory Commission were chosen by the General Council on July 25, 2007. The Commission members from the Provinces are:

• Albert Nzabonaliba, Afrique Centre-Est
• Carlos Vélez, Central America
• Graham Neist, Sydney
• Joãn Carlos do Prado, Brasil Centro-Sul
• Josep Maria Soteras, Hermitage
• Lindley Sionosa, Philippines
• Luis García Sobrado, Vicar General
• Maurice Berquet, General Councilor
• Seán Sammon, Superior General
• Teodoro Grageda, México Occidental (Secretary of the Commission)