The Statutory Council, or 'Hōtei Kyōgikai,' is established under the Special City Area Establishment Law to create the foundational agreements necessary for the realization of the Osaka Metropolis Plan. This council consists of 20 members, including the governor and mayor, along with nine representatives each from the prefectural and city councils. The council also invites academics and experts to provide insights and opinions during the deliberations.

The council's primary function is to draft the 'Agreement' that outlines critical details related to the establishment of special wards, including the date of the ward's establishment, names and boundaries of the wards, the number of ward council members, the division of responsibilities between the prefecture and the wards, tax distribution, and financial adjustments. These decisions are pivotal for shaping the administrative framework of the new metropolitan governance.

Furthermore, the establishment of the Statutory Council requires approval from both the Osaka Prefectural Assembly and the Osaka City Assembly, emphasizing the need for cooperation between local government bodies. As Osaka moves towards this ambitious plan, the effective collaboration and input from various stakeholders will be crucial in addressing potential challenges and ensuring the smooth implementation of the proposed changes.