Section 1. Be It Enacted, &c., That an Additional Executive Department

in the government of cities of the third class is hereby created, to be known as the Department of City Planning, which shall be in charge of a City Planning Commission, consisting of five persons, to be appointed by the mayor and councils. In the first instance, one member of said commission shall be appointed for one year, one member for two years, one member for three years, one member for four years, and one member for five years, and annually thereafter a member of said commission shall be appointed for a term of five years. An appointment to fill a casual vacancy shall be only for the unexpired portion of the term. All members of the said commission shall reside within the zone of jurisdiction of said commission, as hereinafter defined. They may make and alter rules and regulations for their own organization and procedure, consistent with the ordinances of the city and the laws of the Commonwealth. They shall serve without compensation, and make annually to the mayor and councils a report of their transactions. They may employ engineers and other persons, whose salaries and wages, and other necessary expenses of the commission, shall be provided for through proper appropriation by councils.