Abstract
According to the Recommendations of the Decentralization Reform Promotion Committee, City Planning Act was amended in 2011, and the provisions was abolished, that ,when the Prefectures are deciding on city plans for city planning areas pertaining to large cities and the cities around them, or for any other city planning areas stipulated by Cabinet Order, they must consult with the Minister of Land, Infrastructure, Transport and Tourism and obtain his permission in advance. This thesis is to research when and how City Planning Act was amended regarding the National Government's participation in the Decision of City Plans. And actual reality became clear that the amendment in 2011 was major one in respect of reduction of the National Government's participation.
