mous regions and municipalities directly under the Central Government shall formulate the civil airport construction plans of their own administrative areas on the basis of the national plan of civil airport distribution and construction, and incorporate such plans into the national economic and social development programs at their respective levels after being approved in accordance with the procedures prescribed by the State.
Article 55 The civil airport construction plan shall be coordinated with city construction planning.
Article 56 The construction, modification and extension of a civil airport shall conform to the plan of civil airport distribution and construction formulated according to law and to the standards of civil airport, and shall be subject to the approval of the competent authority concerned and implemented in accordance with State regulations.
A construction project of civil airport not conforming to the plan of civil airport distribution and construction formulated according to law shall not be approved.
Article 57 With respect to the construction and extension of a civil airport, an announcement shall be issued by the local People's Government at or above the county level in the place where the civil airport is lo-
