Legal basis: Article 4 of the Regulations on the Administration of Administrative Boundary, after the demarcation of administrative boundary, it shall be announced by announcement and detailed drawing of administrative boundary.
The administrative boundaries between provinces, autonomous regions and municipalities directly under the Central Government shall be promulgated by the civil affairs department of the State Council and jointly managed by the people's governments of neighboring provinces, autonomous regions and municipalities directly under the Central Government. The administrative boundaries within provinces, autonomous regions and municipalities directly under the Central Government shall be promulgated by the people's governments of provinces, autonomous regions and municipalities directly under the Central Government and jointly managed by the people's governments of neighboring autonomous prefectures, counties (autonomous counties), cities and municipal districts.