Board of Approval composition and procedural rules require ex officio membership, co-option, one-third quorum and Member-Secretary authentication. A Board of Approval for Special Economic Zones is constituted by the Central Government with specified ex officio members and defined ranks; members' terms end on ceasing the qualifying office, and Joint Secretary-class nominees may authorise substitutes. The Board may co-opt expert persons without quorum status, set its procedure and meeting schedule, requires one third of members for a quorum, decides by general consensus, and authenticates its orders and instruments through the Member-Secretary or an authorised Member, while defects or vacancies do not invalidate its acts.