The council or corresponding legislative bodies of any political subdivision and the county commissioners of any county so cooperating may delegate to the regional planning commission, by ordinance or resolution, any or all of the powers and duties of the planning commission of such political subdivision with respect to the territory of the political subdivision so enacting or resolving, and in case of a county any and all of the powers and duties of a county planning commission for the territory of the county so resolving.
16 P.S. § 5211