In almost all APEC economies, the implementation of PPP procurement involves all governmental levels, from federal/central government to states, provinces and local government, in which their roles are conducted according to their respective authority/responsible areas.
In federal/central government level, the implementation of PPP involves related ministries/ government agencies such as Ministry of Finance, the Treasury, Ministry of Public Work, National Development Planning Agency. In addition, specific authorities dedicated to PPP development are available or established in some economies. In the lower level, there are also a number of agencies or units designated to undertake or related to PPP projects procurement. If established within a decentralised government, these agencies/units play the same role with that in the federal/central government.
A PPP agency/unit itself also serves multiple roles. It might participate in project planning or become the initiator of the project, provide supporting fund/works, or assist the government in monitoring project delivery.